This is a great move for the Ducks as is open up a roster spot for Lundestom or Sherwood who both should have a regular role with the team. Ritchie is better than either of them, but he has more value and could bring back a good piece in Benning, who would round out an elite D group. Dotchin, Sustr, and Schenn are good but not as young or talented as Benning. Left D prospects are rather expendable in Anaheim as Larsson, Pettersson, Lindholm, and Fowler are going to hold the positions for a long while. The Ducks will gain a higher draft pick and an upgrade on D while losing two pieces that can be readily replaced.