But I think that's what Bridges is for. Bridges is not enough if you lose Hartenstein and Randle, but he is if you have Allen.
Right now, center is a much bigger problem than play-making, and Allen would completely solve that problem and salvage some of the lost play-making from Randle, who has never been that reliable.
Also, not sure anybody is beating Boston. I'd just playing for the 1 seed knowing Boston is the best team, and then if somebody on Boston gets hurt, it's all you. If Robinson is your best center, you're really susceptible to losing to teams not named the Celtics.