With Boston's offseason roster construction nearing completion, we're ripping open the Celtics Mailbag and tackling your letters. Among the topics covered:
* Are the Celtics done adding players to their roster?
* Does the team need another backup ball-handler?
* What are the Celtics doing with the biannual exception?
* Is second-round pick Kris Joseph going to make the roster?
* Who is the team's starting shooting guard when Avery Bradley returns?
Hop HERE to read the Celtics Mailbag.