TE Juwan Johnson undergoing surgery for foot injury and expected to miss camp time

JJ is not a special tight end, he is serviceable at best. Hopefully Kubiak and DA can find an upgrade. I often hear the NFL is a copy cat league, but for some reason the Saints ignore the fact that most successful teams have a legit tight end. How long has it been since the Saints invested in the position? Who was the last really good tight end to wear the black and gold?
He is a capable player but we have been suffering at the position since we traded Graham and converting a WR to the position is proof.