One of the most active offseasons in memory has given the Jets a completely new look and new hope.

The Jets have a new coach, a new general manager, a new star on offense, new leaders on defense and new uniforms. All of that newness has the Jets feeling good entering the 2019 season, hopeful they can end an eight-year playoff drought and return to the postseason.

While the new pieces are generating plenty of excitement, it will be the holdover at quarterback, Sam Darnold, who really determines how far this team goes this year. Darnold has looked fantastic in training camp and through most of the preseason and looks primed for a big leap in Year 2.

New coach Adam Gase was hired with the focus of getting Darnold over the hump. Gase is a creative offensive mind who has clicked with Darnold and promises to bring an up-tempo attack. The additions of Le’Veon Bell, Jamison Crowder, Kelechi Osemele, Ryan Kalil and Ty Montgomery also improved the offense around Darnold.

On defense, new coordinator Gregg Williams will have to be creative to mask some gaping holes at edge rusher and cornerback. C.J. Mosley was signed to be the leader on the field, and the inside linebacker gives the Jets a presence there they have missed since releasing David Harris.

The Jets will find out quickly what type of team they are. They begin the year with home games against two similar teams trying to become winners with second-year quarterbacks — the Bills and Browns. After that, two road games against the past two Super Bowl winners — the Patriots and Eagles — will be tough tests for this young team.

The Jets have not had a winning season since 2015, when they went 10-6 in Todd Bowles’ first year with the team. This is the first time in a while it feels like they could contend for a wild-card spot.

The biggest issue for the team is depth. Beyond their starters, there is very little talent. The Jets fired general manager Mike Maccagnan in May partly because his drafts had produced so little. New GM Joe Douglas can only tinker with the roster now. He must wait until the offseason to do a major overhaul. If the injuries pile up, the Jets are in trouble. If they can remain healthy, there is reason to believe the playoff drought could end.

Offense

Welcome to the Adam Gase Show.

The new Jets coach lives and breathes offense and is the first Jets head coach since Rich Kotite in 1996 who came from the offensive side of the ball. His challenge will be to bring out the best in Sam Darnold.

The second-year quarterback had a strong finish to last season, playing well in the final four games of the year after coming back from a foot injury. He threw six touchdowns and just one interception in that four-game stretch.

The Jets went out and got him some new toys to play with. Le’Veon Bell joins the team on a four-year, $52.5 million deal after sitting out the 2018 season. He had 1,946 total yards from scrimmage in 2017 and gives the Jets a running and receiving threat. Look for plenty of passes to Bell when Darnold gets in trouble.

Ty Montgomery was an under-the-radar signing by the Jets, but he will provide a nice complement to Bell and can be a matchup nightmare for defenses.

At wide receiver, Robby Anderson leads the way. Anderson, entering the final season of his contract, has yet to reach 1,000 yards receiving in a season and needs to prove he can be a complete receiver and not just a deep threat if he wants to get paid.

Gase promises to use Quincy Enunwa in different ways this season. Enunwa was frustrated at being primarily a short-yardage option last year. Jamison Crowder was signed to be the slot receiver and had a strong training camp.

Chris Herndon showed a lot of promise as a rookie, but the tight end begins this season on a four-game suspension. He will have a major impact when he returns in October. In the meantime, the Jets hope Ryan Griffin can fill the void at tight end.

The offensive line has two new members. The Jets traded for left guard Kelechi Osemele in March and then coaxed center Ryan Kalil out of retirement in August. There are a lot of questions about this group, especially after they did not play together for one snap in the preseason. Kalil is the key to the line. If he has something left in the tank, this unit could be better than expected.

Grade: B-

Defense

Gregg Williams takes over a unit that has a good, young core but some glaring holes.

Jamal Adams leads the way in the secondary. The third-year safety made his first Pro Bowl last season and it feels like it was the first of many. Marcus Maye will be back next to him after shoulder surgery ended his 2018 season and limited him in training camp.

The first big question mark comes at cornerback. Trumaine Johnson is back for the second year of his five-year, $72.5 million contract. Johnson was a disappointment in his first season and was sidelined by a hamstring injury for the second half of training camp. If Johnson is not healthy, the Jets are in major trouble.

Darryl Roberts will start opposite Johnson, going from useful backup to a starter who is being counted on. The Jets signed Brian Poole in free agency to replace Buster Skrine as the slot cornerback. The Jets have very little depth at the position and cannot afford an injury.

The Jets gave C.J. Mosley $51 million in guaranteed money to lure him from the Ravens, believing he can improve them on the field and be a culture changer in the locker room. Avery Williamson was expected to play next to Mosley, but he tore the ACL in his right knee in a preseason game. Now, Neville Hewitt will be counted on to replace Williamson.

At outside linebacker, Jordan Jenkins is back and he has had a strong training camp. The other big question mark comes on the opposite side. The Jets do not have a stud edge rusher. They will be relying on a rotation of Frankie Luvu, Tarell Basham and Harvey Langi to produce there and then Brandon Copeland when he returns from a four-game suspension.

With no strong edge rusher, the Jets are relying on their defensive line to create pressure. It is the deepest position on the team. Veterans Leonard Williams and Henry Anderson will team up with first-round pick Quinnen Williams to push the pocket up the middle. The 33-year-old Steve McLendon is back to stuff the run.

There is pressure on Gregg Williams to live up to his reputation as a defensive genius and scheme around the deficiencies on this unit.

Grade: C

Special teams

The Jets had success on special teams last year with two Pro Bowlers … and then they let them walk in free agency. It remains a puzzling decision that the Jets did not re-sign kicker Jason Myers and return ace Andre Roberts.

Their departures have left the Jets searching for replacements. Kaare Vedvik is the latest contestant in the Jets’ kicker search. The team claimed Vedvik off of waivers on Sunday from the Vikings. Vedvik has never kicked in an NFL regular season game and struggled in the final two games of the preseason with Minnesota, going 1-for-4 on field goal tries.

Braxton Berrios will be the punt returner. He is another player who just arrived after the Jets claimed him Sunday, the day after the Patriots cut him. Berrios is another inexperienced player, having never seen time in a regular-season game. The Jets opted for him over Greg Dortch, who had handled the punt returning duties during the preseason.

Trenton Cannon will be the kick returner. Cannon struggled last season with catching kicks, but has looked better this summer.

Lachlan Edwards is back at punter after beating out Matt Darr. Edwards has steadily improved but still lacks consistency.

The coverage units should looks similar to last year with Cannon leading the way as the gunner on the punt team.

Grade: C

Coaching

The Jets cleaned house after last season, keeping only a few coaches from Todd Bowles’ staff.

Gase has been impressive. He has brought energy to the team and seems to have his finger on the pulse of everything inside the organization. The true test comes when the games start, but he has rebounded from a rough opening press conference and his role in the ousting of Maccagnan to provide some hope for the organization.

The competition between Gase and defensive coordinator Gregg Williams was fun to watch this summer and should benefit the team. Williams has brought an intensity to the defense it was lacking under Bowles.

First-year coaches have done well for the Jets. We’ll see if Gase can continue that tradition. Herm Edwards, Eric Mangini and Rex Ryan each went to the playoffs in their first seasons in charge. Bowles did not make the playoffs, but the team went 10-6.

For the first time since they hired Bill Parcells in 1997, the Jets went with an experienced head coach. Gase got the Dolphins to the playoffs in his first season before things fell apart. His confidence is contagious and he has the Jets believing they can do great things this season.

Grade: B

Two-minute drill

Most important offensive player: It would be easy to name Sam Darnold or Le’Veon Bell here, but I’m going to go with Ryan Kalil. The Jets desperately need better offensive line play and I think Kalil is the key to that unit. Can he recapture the form that made him a Pro Bowler in Carolina or should he have stayed retired? The Jets season could hinge on that question.

Most important defensive player: Trumaine Johnson was a disappointment in his first season with the Jets. They need him to have a bounceback year. Johnson is in the second year of a five-year, $72.5 million deal. If he can shut down the opponent’s top receiver, that creates a lot of opportunities for other players and for Gregg Williams to get creative.

Rookie to watch: The Jets took Quinnen Williams with the third-overall pick in April and he was viewed by many as the best player in the draft. His raw ability has been on display in training camp. Williams has struggled a bit against the run, but his pass-rush ability is clear. The Jets are counting on him to provide pressure up the middle.

Star on the rise: Jamal Adams continues to get better and he should thrive in Gregg Williams’ defense. Adams is on the verge of being the best box safety in football. He is a tackling machine who can blitz and cover.

Biggest coaching decision: Adam Gase has to keep Le’Veon Bell happy. In the wake of the firing of Mike Maccagnan, it came to light that Gase thought the Jets overpaid for Bell. The two have gotten along this summer but if Gase does not feed Bell the ball, will the star back become unhappy? It is something to watch.

Don’t be surprised if: The Jets start slowly. There are a lot of new pieces on this team. Communication may suffer early in the season and they have a tough first six games.

Sure to make fans grumble: The lack of a pass rusher is going to be a problem and it feels like the last one they had was Mark Gastineau 30 years ago. The Jets hope they can create pressure up the middle, but fans are going to want to see sacks.

Can’t miss ’em

Sept. 16 vs. Browns: Baker Mayfield made his NFL debut against the Jets and humiliated them on national TV last year. This is the rematch and it comes on “Monday Night Football.”

Nov. 10 vs. Giants: Who knows what these teams will look like by this point, but it is always fun when the crosstown rivals play every four years. Will Daniel Jones be at quarterback for the Giants? Can Sam Darnold make Giants fans moan that they did not take him?

Dec. 22 vs. Steelers: At the very least, this game will be spicy with Le’Veon Bell facing his former teammates. If things go right for the Jets, though, this could be a critical game for their playoff chances.

Prediction: 8-8

The Jets are going to be much improved this season, but they won only four games last year. I have them doubling their win total, which is a massive improvement, but probably still not enough to make fans happy and not enough to make the playoffs. This will be a year of progress, but I think they are still a year away from being a playoff team.