A lot of good ideas so far. Trying to add something different to the pile.
1. Additional depth chart slots for out of position backups - For those seasons that you're not two deep at a position, it would be nice to specify who to pull to fill in a position that's short. Whether you're running a 100% run offense with no real QB and you want to specify who's handing the ball off to incorporate them into the running game, or if you're running a pass heavy offense while short on WRs and want to make sure you stud backup RB is the first one pulled to fill in as a slot receiver, being able to control where those backups are pulled from would help.
2. NIL - Recruiting already has the Booster Gifts option that nobody uses (because it came with consequences). If it could be recoded to be used as an NIL feature, then that would be a pretty cool change in my opinion. The way I would envision it is that each D-1A team has X amount of money (let's say 1 million). Amount would vary based on Division. If a coach wanted to go all out to sign that star QB, he could throw it all at him, or maybe just a portion. If that recruit signs, then he accounts for the amount of NIL that was offered for 4-5 year, or as long as he's on the roster. You could have 1 player getting 1mil, 10 players getting 100k, or any other way you want to split it up. This would give non-elites a better chance at stealing a top player, while giving more variance of roster management. That's probably a much bigger change than what would be considered, but I personally like this idea.
3. Big game hype option - Allow coaches to identify one or two games out of the season (picked before the season kicks off / or default to highest rated opponents if not manually picked) that a coach can hype up their team. That would give a small ratings boost for the entire roster. Think of it like rivalry games. OSU vs. Mich, Bama vs. Auburn, Notre Dame vs. USC, Oklahoma vs. Texas. In real life, those games mean more for those teams, and the players give a little more in those games. It would be cool to circle a game on my schedule and tell my team that this game means more. Probably wouldn't be a traditional rivalry game, but if there's a game that obviously will have a bigger impact on my season then I'd like to hype my team up for it.
Again, tried to come up with different options than what's already been mentioned. It's fun to dream, but I imagine changes will come in small adjustments over time.