Well, so does Mangini. Gholston can't go around defenders, he goes through them. That is all well and good against 280-290 LBs college OTs, but what about the over 300lbs guys. Mangini will have to work a long time with Gholston to increase his repetiore or he will be a bust. He will not be able to bull rush Matt Light or Jason Peters in this division. Both will misdirect the guy 20 yard beyond the QB with not much problem.
I was high on Gholston until I watched tape and realized he is a one trick pony. And his trick isn't like Dwight Freeney's one trick that eventhough everyone knows how to defend, many OTs aren't strong or fast enough to keep Freeney in front of them. But once Orlando Pace gave the blueprint on how to defend Freeney, his production dropped quite a bit.
Can anyone name one pass rusher who primarily depends on the bull rush in the NFL like Gholston? Even bigger DEs don't rely on it that much. No wonder why Mangini is already setting expectations that Gholston will start the season as a back up.