The Boston Celtics only have 14 players signed to their current roster, leaving room for one free-agent signing. Joe Johnson was a possibility, but he ended up signing with the Miami Heat. Boston has a pretty set lineup now and maybe adding someone would only disrupt the chemistry. Although, there’s no doubt adding the right piece could boost a team’s chances of success in the playoffs significantly. The chances of the Celtics finding someone who will push them over the hump is very unlikely, however, there are still needs this team needs to address.