Here's the question to ask: what, if any, cost to WPRO has DePetro incurred through this fiasco?
I don't mean potential cost, I mean real dollars. If the advertisers all scream that WPRO cannot be trusted and they're not going to pay the ad rates WPRO wants...? Then yes, DePetro is toast. If only a handful complain, or possibly none at all (as Dan points out, Arbitron deserves some blame here, too) then despite his relatively weak numbers, he's not so bad that he's not worth keeping around. On the other hand, if mgmt feels his numbers aren't all that great to begin with, they might fire him because he's not worth the potential embarassment. But, you can just as easily turn that around and say that his numbers will improve (under the theory that there's no such thing as bad publicity).
I do find it interesting that his wife is willing to be thrown under the bus on this. Either she and him are exceptionally pragmatic and loyal to each other, or John's really gonna be in the doghouse tonight! (j/k) :