Ignore the in-game, anti-Musgrave Twitter rants. The Raiders offense was good — very good — last season. You don’t rank sixth in the league in offense and seventh in scoring by accident.

But can they be better? Much better in fact? Yes.

And despite all the hype around the Marshawn Lynch signing, he’s not the reason. Ideally, Beast Mode comes in and takes over Latavius Murray’s carries and, at 31, can be as productive as Murray was last year — if not a touch more consistent. He’ll lead the team in carries and yards and find the end zone a fair share.

But despite last year’s cries from coach Jack Del Rio for more “big boy ball,” that’s not what you should expect from this year’s Raiders.

The Raiders have an elite passing game and that’s what they need to and will exploit. Let’s examine some areas in which they can improve.

According to Football Outsiders, the Raiders were 18th in the league in a stat it calculates called drive success rate (DSR), which measures how often a team gets a touchdown or at least a first down on a series. They did so on 70 percent of their drives, putting them behind the 3-13 Chicago Bears (70.1 percent) and 5-11 San Diego Chargers (71.7), among others. They also ranked 26th in the league in plays per drive (5.68), forcing their suspect defense onto the field too often.

That backs up the theory that while explosive, the Raiders weren’t the most consistent and methodical group. (The Atlanta Falcons, not surprisingly, had the highest DSR rate, followed by the New Orleans Saints, Dallas Cowboys, Green Bay Packers and New England Patriots).

So how can the Raiders move the chains better this year? Better weapons always help and Derek Carr has better weapons this year. It starts at the tight end position.

“We’re really excited about adding Jared Cook,” offensive coordinator Todd Downing said. “You guys have seen his length and vertical speed. Earlier we talked about being able to attack the field vertically. You have to be able to do that on the inside part of the field, too. A lot of times that’s where the tight ends happen to line up. We need their speed. We need their size. Certainly, we’ll give them the opportunity to make plays in the vertical passing games.”

It’s true that Cook has never had a huge statistical season (career highs are 52 catches, 671 yards, five touchdowns). But take a look at his starting quarterback with Tennessee and St. Louis from 2009-15:

Vince Young, Kerry Collins, Rusty Smith, Matt Hasselbeck, Jack Locker, Sam Bradford, Kellen Clemens, Austin Davis, Shaun Hill, Nick Foles and Case Keenum.

Beside the list being unimpressive, it was inconsistent. Only one season did one quarterback start all 16 games (Hasselbeck in 2012) and every other year there was a second quarterback who started at least five games.

Last year should’ve been the outlier for Cook when he went to Green Bay and teamed up with Aaron Rodgers, but a high ankle sprain cost him six games and kept him from reaching his potential, until mid-December that is. Over the final three regular season games and into his dynamic three-game playoff performance, Cook was targeted 53 times and caught 31 passes for 407 yards and two touchdowns. Play the unrealistic game and extrapolate that over 16 games and you have 83 catches and 1,085 yards.

With plenty of balls to go Amari Cooper and Michael Crabtree’s way, those numbers are too high to achieve, but based on his early rapport with Carr, he should be a first-down machine over the middle.

And then there’s Cooper and Crabtree. Here’s wide receivers coach Rob Moore on what they bring:

“You know that week in and week out, you can have an opportunity to go in and make it tough some of the matchups you face from week to week.”

Crabtree, who will turn 30 four days after the season opener, is coming off a career-high 89 catches and the second 1,000-yard season of his career. While a dislocated finger may have led to some drop issues last season, at this stage, what you see is what you get with him. He’s tough, reliable and always confident he can beat a defender to the ball.

But Cooper can offer so much more than what he’s shown so far and Moore believes Cooper’s added strength will equal more touchdowns.

“What it’s going to do is help him make those contested catches through some of the grabbing and holding that he faces from week to week,” Moore said. “I think he did a great job last year of cutting down on the number of drops he had from his rookie year and now I think this new added strength will make him even more of an added bonus for us in the red zone, being able to go up and get some of those 50-50 balls.”

Cooper was targeted only 13 times in the red zone last year (Seth Roberts, meanwhile, was ninth in the league with 20 targets and Crabtree was tied for fourth with 21) and had zero red zone touchdowns. He also didn’t catch a single pass while being targeted inside the 10-yard line. As a rookie, he was never even thrown to inside the 10, although he did have a pair of red zone scores. Simply put, if Cooper is in fact a red zone threat finally, the Raiders offense improves greatly.

And let’s not forget about Roberts. There’s that fun stat that the team is 9-0 when he catches a touchdown pass, but second half of last season was sobering. He averaged just two catches for 19 yards with just one touchdown. He finished the year near the bottom of the league with a catch percentage of 49.4. Despite a 40 percent increase in targets from his rookie year (55 to 77), he had only six more receptions and finished with 83 fewer receiving yards.

Moore offered up some insight as to why.

“He’s still developing and I think for him, people don’t understand that he had to play with a double hernia,” Moore told the Bay Area News Group on Tuesday. “The problem he had last year, he got that fixed this off-season. I think he’ll have a lot more core strength and the balls won’t get ripped away from him as much as they did in the past. He’s just going to continue to grow because he’s a kid that works extremely hard as well.”

Finally, there’s Cordarrelle Patterson, a player with blazing speed but a 10-yard per catch career average that doesn’t match up. The Raiders are trying to take advantage of the speed.

“I think his ceiling is going to be self-determined,” Downing said. “However much work he wants to put in on developing his receiver habits, he’ll be able to do anything he puts his mind to. The guy is a freak of nature athletically. He certainly has great long speed, so we’re going to take the opportunity to showcase that a little bit in camp and see if he can handle it.”

Take all that and add a Clive Walford who says he’s “lighter, stronger, my body just feels better” after being slowed last season by an ATV accident that led to a knee injury. Throw in a dash Lynch running behind one of the NFL’s best interior offensive lines and some works from Mighty Mites DeAndre Washington and Jalen Richard and the firepower is there aplenty.