I've been one of the biggest Konerko critics out there, but his late career resurgence has been nothing short of amazing.
He was hitting .400 last season before the wrist injury sapped him of his power for the final four months. It would be accurate to say he regressed for the last four months of 2012, but complete BS to say "he's regressed for years."
The universe is the practical joke of the General at the expense of the Particular, quoth Frater Perdurabo, and laughed. The disciples nearest him wept, seeing the Universal Sorrow. Others laughed, seeing the Universal Joke. Others wept. Others laughed. Others wept because they couldn't see the Joke, and others laughed lest they should be thought not to see the Joke. But though FRATER laughed openly, he wept secretly; and really he neither laughed nor wept. Nor did he mean what he said.