Michigan Live (A. Sherrod Blakely) reports: The announced signing of Alex Acker was interesting. The fact that Detroit signed the 6-foot-5 combo guard isn’t all that unexpected. This guy has been on the cusp of sticking with the team for years. But it is a bit surprising that they guaranteed his contract for the season considering most of his time will likely be spent on the inactive list. Usually teams keep that 15th spot open in case a talented player is unexpectedly waived, or as a cushion to absorb an extra body in a possible trade.