I agree about Ingrassia, but disagree on the second two. I think Cason may take a little while to adjust, though his velo should show well in FCL. Garcia is coming back from injury and may get off to a bit of a slow start. It also may impact his defense more than we hope.
I'd swap out those two for Blake Aita and Harold Rivas for two different reasons. I think Blake Aita has the ability to storm through A ball with little trouble and reach AA by the end of the season due to his spin rates and increased velo. Harold Rivas has the physical gifts that other prospects have shown in the past to go from a 40ish ranked prospect to being strapped to a rocket ship once they start to appear in games (Bleis, Jimenez, Antoni Flores, et al).