Every program has extensive discipline issues though. People make fun of Tressel's "dirty thirty", but the fact is, Michigan has roughly the same number of incidents.
I'm not excusing it, I'm merely saying that USC players behaving improperly in public is hardly unique, and not evidence of cheating - or even Carroll's morale compass. It's not like he's the one getting to fights at parties. We don't write about Lloyd Carr's lack of a morale compass, right?