A little early to put Marcus in the HOF, I think.
For a ceiling? Maybe, but I think it's a wildly high projection.
That's the thing about a ceiling though. It likely would be high. If I set a ceiling of Tony Allen for Smart, then next year he exceeds that ceiling I would have to create a new ceiling. Then perhaps he exceeds that one. After a while I question whether I'm being too conservative in the first place.
Setting a ceiling for a player is something only fans really do, for the player himself it's largely pointless, you just think about long term goals and short term goals and how to achieve them. But as a fan, the ceiling should be what he would be if everything went right wouldn't it? So it's likely to never be reached.
So anyway my ceiling for Smart is MJ, it's the natural comparison..