Although I believe Thabeet be a good defensive player, he needs to develop a consistent inside game in order to merit a HOF career. Right now, he is benifitting from being the biggest man on the court in college, but is still doesn't have the polished post game.
What's going to happen to him when he's facing guys who hover around the same height, but are also athletic. Will he be able to outmuscle and outquick guys like Amare, Dwight.
He might get an all-star game or two based on his defense alone. At UConn, he makes the biggest difference when he is in because of his ability to alter shots in the post and his obvious height advantage for rebounds. However, his NBA career and HOF standards will be measured by all metrics outside of blocks and rebounds, and his ability to put some points on the board.
But since your calling it, that's fine. One man's opinion on that is fine. Let's just not start giving him the throne like people did with Oden.