I think it'd be interesting that when you take over a new team you could choose your assistant coach. There would be different types of coaches that have specializations to help your team. Here are some examples:
The Accountant - 10% reduction on recruiting costs.
The Scout - Reduced FSS costs, able to FSS PR and internationals. Scouting trips are more comprehensive (shows high/high, high/low, etc).
The Drill Sergeant - Practice time is increased by 10 minutes.
The Negotiator - Reduced chance of ineligibles going JUCO, increased chance of player accepting a redshirt, reduced chance of a player declaring for the draft early.
The Scoundrel - Drastically reduces the chance of getting caught with booster gifts. At D3, allows limited use of booster gifts (throwback jersey, plane tickets).
I think this would add a layer of complexity to make the game more fun. Thoughts?