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I think your forwards are solid. I would probably drop Zibanejad for Gagner. But I view that as relatively minor.
Your D is also solid. You do have 6 very serviceable D however.
Goaltending is decent. As with MD said, I'd look into packaging a D with Backstrom or Lindback for a better goalie. Perhaps you could target Cam Ward or someone slightly undervalued. If you could land an elite guy like Lundqvist (or even Schneider or Rask) even better.
Ultimate Dynasty League
16 Team Dynasty League H2H: G, A, P, PPP, SHP, +/-, PIM, SOG, W, L, GAA, SvPct, SHO
C: Stamkos, Getzlaf, Carter
LW: Ovechkin, Kovalchuk, Brown
RW: Iginla, Pavelski, Horton
D: Byfuglien, J.Johnson, Goligoski, Hedman, Hamonic
G: Schneider, Hiller,
B: E. Johnson, S.Kostitsyn, Neil, Biron, Giguere
Prospect: Nail Yakupov, Tangradi
UHL Dynasty St. Louis Blues
...a bad team trying to rebuild...