He's obviously not the first one to suggest this, but he just jumped to the other side of the fence now.
I agree with the sentiment. As I've mentioned several times over the past year or so, I think Ricciardi is an average GM - good enough to put a decent team on the field, but bad enough where the Jays aren't a real threat. And if you went GM by GM he's probably in the lower half, probably even in the 20s. But let's say he's average; being average isn't good enough when your competition is above average and has better resources. The only way to win then is catch lightning in a bottle.
Tony LaCava was a GM candidate in a couple places, or at the very least teams wanted to talk with him about a GM position. I would think given that he'd be on the short list of possible successors, but to most of us he's invisible so it's hard to tell how he'd be different than Ricciardi.