Bush had the same amount of carries in the Rose Bowl that he did all year long. He was a 10-15 down back all year long and I think he ended up with 15 carries in the Rose Bowl.
The difference is Texas was tackling and being aggressive before he got into the open field, so his production dropped way down.
I haven't been sold on Reggie Bush's talents transferring to the NFL, either, because I know he gets a lot of yards from crappy college tackling. In the NFL, they don't miss tackles like that. They can't or they're gone. Best of luck to him, though.
Also, i'm convinced the Texans will pick up Bush #1 because of two things.
A) They're scared if they don't pick him and he does blow up they'll be laughed at and mocked forever. On the flip side, if they pick him and he flops, no one can blame them.
B) They'll be more than happy to give Bush 10-15 carries a game and let Davis rest up for any possible late season/post season run they may make in the near future (stop laughing). This is a common trend going on in the NFL and Houston will pick up on it.