Too many variables to all be in on a "fix". A 3 or 4 win team is going to see a lot of change in the 53 man roster, so close to half the team isn't returning in 2025. Those guys need to play to get a job somewhere in 2025. Same with the coaches. Not all of the coordinators, position coaches, assistant position coaches will be returning.
Whether that is good enough to beat a non full strength Buffalo team, will see.
I was curious about this, so started digging into the numbers. Off the initial roster, 19 were new to the team (14 offense/4 defense/1 ST, 8 free agents/11 rookies). Doesn't include injured returning players (Bourne, Strange, Barmore, Takitaki, Mapu). Not sure how that compares to the average team.
That doesn't factor in snaps, so looked into that as well. 22 players played at least 10% of offensive snaps, 11 of them were new to the team. If we're just looking at the primary 11 (or a rough idea of it), it's 5 new players. 26 players played at least 10% of defensive snaps, only 6 of them were new to the team. The primary 11 on defense is a bit more difficult to distinguish. Only 1 of the top 11 in snaps was new, but that's Hawkins, who was really more of a top backup.
All of which is to say, I'm hoping we see that significant change for Year 2 of the new regime, but we didn't exactly see it in Year 1. They lost some major pieces on defense (though that's primarily due to injuries with Barmore and Bentley), but they also got a full year of Gonzalez, which makes the drop off even more stunning.