With the Jets reporting to training camp Wednesday, here’s a look at their biggest issues:

Biggest comeback

The Jets need Marcus Maye to return to the form he showed as a rookie and show he can stay on the field. Last year, ankle, thumb and shoulder injuries limited him to six games. The Jets back end is not the same without Maye there alongside Jamal Adams. Maye was placed on the active/physically unable to perform list this week so his start to camp will be delayed. Still, the Jets are optimistic he can return soon and take his spot in the secondary.

Biggest position battle

The Jets really don’t have that many battles for starting spots entering camp. One spot that may be up for grabs is the second cornerback spot opposite Trumaine Johnson. Darryl Roberts is penciled in now, but the Jets likely will bring in several contenders to take Roberts’ spot. Some are already on the roster and others could arrive off the waiver wire or through trades. Keep an eye on the Eagles, where new Jets general manager Joe Douglas worked for the last three years. They have a surplus of corners and could look to send one to the Jets.

Most fascinating newcomer

All eyes will be on $52.5 million running back Le’Veon Bell as he returns to the field after sitting out last year because of a contract dispute with the Steelers. Bell is the most explosive player the Jets have had in years and could have a huge impact this season. During training camp, it will be interesting to see what kind of workload coach Adam Gase gives to Bell. Gase probably will ease him in because Bell has not played in more than a year. Does Bell play at all in the preseason? All of this will be under the microscope over the next few weeks.

Coach’s toughest challenge

The main reason Gase was hired by the Jets in January is that CEO and chairman Christopher Johnson and then-GM Mike Maccagnan believed in his ability to coach quarterbacks. Now, he has to prove them right and bring out the best in Sam Darnold in his second season. Gase needs to tailor an offense to Darnold’s strengths and figure out how to hide his weaknesses. The Jets added Bell and WR Jamison Crowder to help him along and the progression of TE Chris Herndon — once he returns from his four-game suspension — and WRs Robby Anderson and Quincy Enunwa should also help.

Most intriguing rookie

Quinnen Williams was viewed by many draft experts as the most talented player in this year’s class. The Jets grabbed him with the third-overall pick and he should be a Day 1 starter. Williams played nose tackle at Alabama, but can move around the defensive line. New defensive coordinator Gregg Williams should have fun figuring out ways to utilize Quinnen Williams and his presence should help fellow defensive lineman Leonard Williams.

Most notable absence

Well, a lot has changed since last year. The Jets have a new coach and a new GM for starters, but let’s keep this to a player on the field. Josh McCown did not play a lot for the Jets last year, but the veteran quarterback had a major impact with his role as Darnold’s mentor. Darnold is now on his own after McCown retired to become a broadcaster. The Jets will miss McCown’s presence in the locker room.