I think Lavarnway has had plenty of time in AAA ball. He has not shown the ability to hit mlb pitching yet and now is the time to find out if that is going to happen. Or not. I'm very surprised given his history but he has not given us much indication yet that he will hit in mlb. I'd play him the rest of this year and see how spring training goes and hopefully progress is made. If he starts out in AAA again fine but it would be nice to see where he is right now, or months ago as i wanted, when he was fresher and just coming into his hot streak rather than beat to dust from catching all year in his first year of doing that level of catching work.
I still have confidence in Lavarnway but sometimes even guys with top hitting numbers bust. He doesn't have to be a great hitter to cut it in mlb as a catcher but he has to do much better than he has recently. Maybe next spring he gets it together.