Smith hasn't even signed with Cleveland yet, so there's that.
In any case, I don't think Smith can take the biggest-perimeter-player-on-the-floor assignment. I'm also uncomfortable with the idea of betting on him to fill a major role on a team without a LeBron-type leader and focal point.
I can see where you're coming from on this, I just disagree. I'd rather keep Crowder and Smart -- maintaining the one major strength this team has, which is multiple aggressive ball-hawk guys on the perimeter -- and then use cap space next summer to go after a wing.
Maybe next summer the Celts can land Gordon Hayward. Or perhaps it would be a less costly, less exciting name like Gallinari, Gay, or Casspi, with cap room left over to bolster depth elsewhere.
Bottom line for me is that the Celts need size with shooting at the 3/4. But where we differ is that I think they need somebody who brings those attributes along with the ability to guard multiple positions in a playoff series -- with an emphasis on switching onto smaller players -- something Love has shown he can't be counted on to do.
In any case, I'd rather move forward with a core of Thomas, Crowder, and Horford with cap space to add more perimeter talent, as opposed to locking into Thomas / Love / Horford. That trio would place an enormous burden on the SG / SF spots to feature above average size, athleticism, and perimeter defense. The Celts wouldn't have much money to add talent at those spots outside of the draft.