Mack Brown suspending the guy that was supposed to cover Ginn may have done Texas in. However, I still believe that Ginn's abilities as a receiver are vastly overrated. He is a marginal route-runner and a so-so catcher, who just so happens to be among the fastest men playing football, amateur or professional.
A good defensive scheme by Brown could still potentially stop Ginn.
Texas' defense should also meet handling Troy Smith and Antonio Pittman. Both sides should meet with moderate success there.
Ohio State will have a very difficult time stopping Texas, though. I know they are without Vince Young, but a decent offensive unit is still in place here. This may prove to be too much of a challenge too early for an Ohio State defensive unit who is too young and too inexperienced.
So... I say this game comes down to Ginn proving his abilities as a receiver.