I dont know if its any more or less likely than the chances that Theriot continues to produce at his current pace (very unlikely). I tend to think he'd be at least as good offensively and he would be an upgrade defensively. I think you're overstating the odds of a player that young and that inexperienced being able to come up and produce right away in the bigs. It would obviously be fantastic if he did come out and out produce guys like Theriot, but odds are he probably wouldn't even match typical Theriot production for most of the season, if at all this year.