I think Williams will get 2nd most minutes as a 5, only less than Kanter. Kanter’s Defensive shortcomings will limit his minutes. I’ve watched Poitier play FIBA and don’t see much there honestly.
Theis is okay but can’t cover the more athletic 5s, a number of whom are in the East.
His size is an issue as well, but the mobility limits him in playing in two-big lineups. People keep projecting "Power Forward" minutes for him, probably because of his size; but the coaching staff has not historically played him there.
Williams, however, has the mobility to play as the second big in two-big lineups - a reason, potentially, why he'll get fast-tracked for minutes. Having said that, they didn't do that with him last year.
I realize Williams has deficiencies especially on offensive end but do expect him to get about 10-15 minutes a game.
I call that optimism - low-rotation minutes, making him ninth or tenth man. You're with the majority here; I myself am less optimistic, but the Celtics' optimism about his talent might well push him up the ladder. My own feeling is that he needs a steady diet of court time at this stage of his career; he's worked hard and been coachable, and showed marked progress as a playmaker and with his body in Summer League (the coaching staff also called attention to his progress in rebounding, which is a big deal if they're going to play him in lineups with only one big).
Small ball lineups with Semi and G Williams playing 5 will be only thing keeping RW3 minutes from going higher than that.
Here I'm highly skeptical. Putting those guys in with a big (especially one who can rebound) makes sense, but I don't see any precedent for the coaching staff going as small as to use 6'7" players as a "big".
Doubt he will spend much time in Maine. Brad will need him in Boston.
I'm with you on this. Put him on a fast track. Having said that, I'm more conservative than you are - I don't think that he'll break the back end of the rotation until February or March.
When I say "fast", I mean a steady diet of spot minutes, practicing and preparing with the team, and getting a chance to prove he belongs in the rotation.