A few things,
For better or worse, depending on your point of view, the Maurice Clarett fiasco prompted ESPN to staff an Ombudsman position with outside hires that have no previous experience with ESPN and for periods not longer than one year, and there has been a greater emphasis put on clearly identifying news from editorial across all their media.
Another reason the USC story will not blow-up like the Ohio State story did is that there is no Maurice Clarett figure to exploit. I'm sure if Jarrett, Bush, or Mayo were terminally stupid and misguided by their 'handlers,' having seen their pro careers derailed and with nothing left to lose, they'd be singing like canaries, if not fabricating pieces of the story entirely to shift the blame onto the people they felt ruined their careers.
Lastly, the OSU story became a bigger deal than it ever should have been because of Andy Geiger. He got into a [censored]ing contest with a major media outlet and had his ass handed to him. Geiger did a lot of great things for OSU and made a lot of brilliant hires that will reap benefits for decades to come, but he was more businessman than politician, and it bit him in the ass in the end. To this point, I haven't seen daily press briefings with the USC AD doing his best Iraq Information Minister deflection routine.
To me, the story took on a life of its own because of the combination and timing of the O'Brien and Clarett stories with the fact that Geiger didn't project an easily likeable image, tending to err towards being self-righteous.
It sucked to go through, and I know my opinion on the issue isn't the popular sentiment around here, but I said it before and I'll say it again: I don't give a [censored] whether or not ESPN or SI or CBS SportsLine or whoever the [censored] reports about Ohio State sudent-athletes' off-the-field behavior. I'm more concerned when OSU student-athletes continue to put themselves in positions to have their behavior made a story. Nobody would have ever read a single article about Troy Smith taking money from a booster if, you know, he hadn't actually admitted to taking money from a booster.