1. Kelly Olynyk or Jared Sullinger
Both guys are young, and both guys are stretch 4’s. Though they differ in play style, they both are better playing the 4, and if the Celtics are serious about bringing in another big (Kevin Love), then one of them will need to go or accept a permanent bench role. After this series the person most likely to ride the pine would be Olynyk (he logged 13 minutes in the final two games combined). However, with rim-protectors on the market like Robin Lopez, Omer Asik, Kosta Koufos, and Javale McGee, maybe Ainge would be more inclined to deal him and then acquire a defensive-minded big.