The offense the Eagles used in Week 1 had Carson Wentz at quarterback surrounded by tantalizing weaponry.

It had Jordan Howard, Darren Sproles and Miles Sanders at running back; DeSean Jackson, Alshon Jeffery and Nelson Agholor at wide receiver; Zach Ertz and Dallas Goedert at tight end, with an elite offensive line identical to 2018 with Jason Peters, Jason Kelce, Lane Johnson, Brandon Brooks and Isaac Seumalo.

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By Sunday’s playoff loss to the Seattle Seahawks, the Eagles offense had been trimmed to Sanders and Boston Scott at running back; Greg Ward, J.J. Arcega-Whiteside and Deontay Burnett at wide receiver; a banged-up Ertz and Goedert at tight end, with Johnson/Brooks out and Halapoulivaati Vaitai and Matt Pryor in. Even Wentz didn’t play most of the game after suffering a concussion.

The way the Eagles’ offense looked in Week 1 was much different than it looked in the playoffs, clearly.

Don’t expect consistency in 2020, either, at least not consistent with this group of players.

This offseason, general manager Howie Roseman might need a radical overhaul of the team’s offense.

We got a head start on what that might look like next season.

Here’s our 2020 projections for the Eagles’ offensive depth chart ...

QUARTERBACK: 1. Carson Wentz, 2. Case Keenum (free agent), 3. Kyle Lauletta

The No. 1 part is easy. What the Eagles do at No. 2 is what’s interesting. If Josh McCown wants to keep playing, it’s logical that the Eagles bring him back. More likely, he transitions to a coaching role.

This will leave the Eagles with the question of whether they want to re-commit to the development of Nate Sudfeld (a free agent) as Wentz’s backup, or go out and get a capable veteran on a one-year deal who can fill in if Wentz gets hurt. Considering the Eagles’ commitment to McCown in the first place, at this point it wouldn’t be surprising if Sudfeld explored other opportunities.

Keenum would be fun considering his history against the Eagles, while he’s a capable backup that has probably run out of opportunities as a starter.

Lauletta spent the season on the practice squad and, by all accounts, acquitted himself well. He’s the next Sudfeld.

RUNNING BACK: 1. Miles Sanders, 2. Lamar Miller (free agent), 3. Boston Scott, 4. Corey Clement/rookie

The Eagles will have an interesting decision to make on Jordan Howard, who missed the second half of the season with a shoulder injury. He was productive when healthy, but the Eagles are committed to Sanders as their RB1, and if Howard is looking for starter money, he won’t be a fit. If he’ll sign for a one-year “prove it” deal, the Eagles absolutely should bring him back.

Scott can fill the Darren Sproles void, though the Eagles will need a backup to pair with Sanders.

Miller is an intriguing potential target as a buy-low option. That’s dependent on how he’s recovered from August ACL surgery, but he ran for more than 900 yards in 2018 and wouldn’t need be the dominant ballcarrier.

WIDE RECEIVER: 1. Tee Higgins (Clemson), 2. Robby Anderson, 3. DeSean Jackson, 4. J.J. Arcega-Whiteside, 5. Greg Ward, 6. Robert Davis/Deontay Burnett

This will be the most important and most interesting position on the roster. What the Eagles do with Alshon Jeffery — who will cost the Eagles $15.69 million in 2020 if he stays on the roster — will be the biggest question of the offseason. Jeffery has been tied to anonymous trashing of Carson Wentz which, if true, should be enough to get rid of him. The fact that he’s declining, injury prone and coming off a bad season should seal his fate, even if it costs a lot of money to get rid of him.

If Jackson is healthy, he’s worth bringing back, ideally at a discount.

After that, it’s on Howie Roseman to go all out surrounding Wentz with top-level talent. That includes using a first-round pick on a rookie like Higgins or Alabama’s Henry Ruggs, and investing in a young deep threat like Robby Anderson, even if that’s a costly contract.

Arcega-Whiteside didn’t show enough as a rookie, while Ward deserves to stick around.

Also, no, Agholor will not be back.

TIGHT END: 1. Zach Ertz, 2. Dallas Goedert, 3. MID-LATE ROUND ROOKIE

This is pretty straight forward. The Eagles might just sign another Richard Rodgers-esque veteran or bring back Josh Perkins, too, for that third tight end role.

OFFENSIVE LINE: LT Andre Dillard, LG Isaac Seumalo, C Jason Kelce, RG Brandon Brooks, RT Lane Johnson (BENCH: Matt Pryor, Veteran free agent, Nate Herbig, Jordan Mailata, ROOKIE)

There’s a lot up in the air here. It seems unlikely Jason Peters returns, especially with Dillard waiting in the wings, unless he’s willing to move over to left guard. That seems unlikely.

Jason Kelce is also always year-to-year and while he’s been an All-Pro two years running, the Eagles also don’t seem quite on the verge of Super Bowl contention. We’ll say he comes back.

The Eagles will need to replace Halapoulivaati Vaitai as the swing tackle, though it wouldn’t be surprising if Pryor inherited that role. They will need to add a veteran presence of some sort from free agency to help out, and possibly draft an interior offensive lineman to eventually replace Kelce or, if Seumalo is the future center, a replacement for him at left guard.

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Zack Rosenblatt may be reached at zrosenblatt@njadvancemedia.com. Follow him on Twitter @ZackBlatt. Find NJ.com on Facebook.