Id like to think that the flawed system with JKidd and the adjustment period to dramatically different roles and teammates have something to do with both of their declines, but maybe they just don't have the same competitive spirit anymore after being traded. That trickles down into pre-season training regimen and game shape, hustle on the court, and mental focus. Add in the age factor and it might be a wrap, everything else remaining equal. KG can still be a plus defender and an overall contributor, and Pierce is still good, but its just not working out right now.