in a 9 team limited keeper i wouldnt keep any D but karlsson, they are just too hard to predict season to season and your stats do them no favours
but i do think you need to hold onto at least of your goalies though as insurance in case others keep 2.
besides your 6 i'd look to keep Iginla if he resigns anywhere but calgary, bryz unless philly picks someone up, and marleau honestly.. i think yakupov has a few more years to go before he really hits his stride and when he does there is backlog of talent in Edm. I think if you stick with your veterans you stand better chance of repeating.
cheers
8 GM, keep 8, 10F 5D 2G
G/A - 1 W/SO - 2
F: Malkin, Kessel, Benn, Okposo, Foligno, Ladd, RNH, Wheeler, Oshie, Callahan, Neal, Brassard
D: Karlsson, Shattenkirk, Giordano, Carlson, Muzzin, Hamonic, Suter
G: Elliot, Holtby, Andersen, Allen
12 GM, keep 5, 10F 4D 2G
G/A - 1 GWG - 0.5 W/SO - 2
F: H.Sedin, Datsyuk, Kessel, Hossa, Ribeiro, Schwartz, Stepan, RNH, Marchand, Pacioretty, Cole
D: Weber, Jones, Savard, Shattenkirk, Giordano
G: Lundquist, Dubnyk, Elliott, Smith