The 2.7 GPA is only required at DI. At the DII level all a player needs is a 2.0. At the DIII level the player is eligible immediately and does not sit out a season. Also, at DI it is the player's option whether to return or not.
Another point to remember when making promises of starts/minutes is that there is a small chance the player will pass his SAT and become eligible. If that happens. he will expect those promises to be kept. Otherwise, using them is a sneaky way to win the player and not have to pay up. If the player remains ineligible, the promises do not carry over.