They tag punters in this league, so yeah why not a center, and if I remember correctly, the Skids had Casey signed at 12:01am of free agency. My point is, If the brass thought highly of Rabach they would have had him either with a new contract or a Tag. Mike Flynn was our Right Guard, he was asked to move to center when we had the great purge of 2002, if Rabach couldnt replace Flynn, then what did we sign him for now? desperation is all I can think of, especially when we have 4 centers in camp already.