Here's another foolish idea that will never be implemented (I come up with a lot of these.)

Coming out of Retirement!

Pay the needed amount for a new player and bring back any player you've retired with out a "Dead" injury. The player comes back with all existing injuries, and skills. The amount you pay is equal to the cost of getting a rookie of the same position, and you may not exceed standard roster restrictions on number of position players.

This is inspired by looking over my older teams and realizing that early in my career, any injury seemed to be immediate retirement. Wish I could get back that blitzer that rolled doubles and got retired on a -av. Ah, well. C'est la Bloodbowl.