By Gary Dzen, Boston.com Staff

The Celtics have a core of veterans who have been in Boston a while, but that doesn't mean there hasn't been serious turnover on the roster. In fact, 23 players who spent time on the roster at some point in the last two seasons are no longer with the team. Several other big names have come and gone over the years as well, and a few of them have turned up in surprising places. What follows is a look at the progress of former Celtics who are still playing basketball somewhere.