This team is going to suck for most of the season, and that has nothing to do with not having talented players, because the Celtics have some talented guys. But a rookie coach, new system, no starting caliber PG and no decent center will make them look really bad.
Regardless of the losses, Bass, Lee, Wallace, Humphries and Crawesome will get enough minutes to look like decent players, and hopefully we get something good in return (picks, players, cap relief).
After the trades, they'll be through another adaptation process, and it will lead to more losses... until March/April, when they'll finally click and then play something like .500 ball, denying the tank rumors and winning when they'll be supposed to play for ping pong balls. In a normal season, this roster could reach 40 wins, but not this year. 26-56 to 32-50 range.