How can we even think of trading away a center that is just 23 years old, averaging 8+PTS/8+REB/1.75BLK per game, is starting to develop a low post scoring presence, is one of the better defensive centers in the league and is signed for this year and 2 more for just $4 million a season.
Perk is one of the biggest bargains in the league. You don't trade assets like Perk for guys like Kaman or Camby.