Two wolves are notable, and not in a good way.
"Turning our focus to the least productive players in the game we see that Ryan Hollins (-1.9 Wins Produced) is leading the way. He is followed by Darius Songaila (-1.5 Wins Produced). The least productive rookies include Earl Clark (-1.4 Wins Produced in only 249 minutes) and Jonny Flynn (-1.3 Wins Produced)."
Some people may not be fans of Berri's Wins Produced, and I think it does have some minor biases and oversites. However, given its predictive power year to year it is the closest thing to a "one stat to rule them all".