I wouldn't be surprised at all if Jerebko begins the season as the starting PF and keeps that spot for most of the year.
His shooting and versatility are really valuable there. I think he could be good next to Horford. You can look at him as sort of a more well rounded version of Mike Scott.
I would be surprised if he started, not necessarily because he doesn't deserve to, but because it would leave our bench unit with absolutely no shooting until Kelly comes back. I'm thinking it'll be Amir and Horford starting, with Jerebko subbong in for Amir as the first big off the bench
I really am not sure what to expect from the bench.
Smart is a gamer, but his offensive game has a long way to go.
Rozier, Brown, Hunter, Mickey -- these guys have very little meaningful experience. We don't know what the team can realistically expect them to do.
Green is a bit of a wild card.
Jerebko is solid, but I think he's the kind of guy who looks better playing alongside better players. On the bench his lack of any particularly great skills is more noticeable.
Zeller is solid but lineup and matchup dependent.
Kelly comes into this season with a significant injury. Might not be 100% for a while.
Amir is solid, though as you say he might be a starter.
I don't know. I was totally in favor of letting Turner go. I advocated for it repeatedly, in fact. But the Celts are definitely heading into this season more or less crossing their fingers that some of these unproven guys makes a jump.