He's on the rockets who chuck 3's all day so I can see his rebounds avg being around 13-14 but certainly he won't always have 20-20 games, Currently he's sitting almost 30 spots ahead of Tatum on fantasy rankings so as long as he's a good fit for your team I'm all for it. I'm also unsure if his blocks will stay at the level they currently are I'm thinking they may regress down towards 1.5-1.8 range.

I had him as a top-30 guy so slight regression but not much

Also gotta keep in mind when Hayward comes back. And how that might affect Tatum. Could help him