He might have, I admit that I haven't necessarily been paying attention.

I know ARod and Fesi gave input while the offensive system was being developed, but Grimes was the OC and ultimately made the decisions (as far as I know).

The assumptions are that last year's offense was pretty great and the coaches want to continue it. But has ARod said anything about his offensive philosophy? If he plans to run the exact same offense or if he intends to implement some adaptations based on ideas he had that Grimes chose not to implement as OC?

It may be that nothing changes at all. Or it could be that quite a bit changes. I just think it could be a mistake to not recognize that not only has last year's QB left the system, but so has the OC. And that could lead to some changes as well.