The Celtics, in an effort to create salary cap and roster flexibility, have waived 6-foot-6 guard/forward Terrence Williams on Sunday. While the move doesn't save them a ton of money -- Williams would have made less than $1 million this season -- it does give the Celtics one more roster spot to toy with in what is sure to be an active summer. Williams had worked his way into a steady role near the end of the playoffs, but an arrest in May put Williams' future with the Celtics on very shaky ground. As of Friday, Celtics president of basketball operations Danny Ainge told that a decision on Williams' future had not been decided. Ainge will be in a similar situation in the next couple of months when options come up for D.J. White and Shavlik Randolph, whose contracts for the 2013-2014 season become fully guaranteed if they are not waived prior to August 1.