Pretty good looking team for a 15 team league...
As far as where to improve... I'd say add depth at center and wings. Your #3 right wing is pretty weak in Boyes. (I was hoping for a good bounce back year from him this year, but it just isn't happening. He has all the opportunity in the world with all the injuries in St. Louis, but just can't finish.)
Would be helpful to know who is available in your league, as well, for better advice...
Yahoo! H2H League (1 Year) (10 Teams)
Offensive Stats: G, A, P, +/-, PPP, PIM, HITS, SOG
Goalie Stats: W, GAA, SV%, SHO
Roster: C,C,C,LW,LW,LW,RW,RW,RW,D,D,D,D,D,Util,G,G,BN(5),I R(2)
C: Backstrom, Bergeron, Stepan, Ribeiro, RNH, Stastny
LW: Zetterberg (C/LW), Sharp (C/LW), Schenn (C/LW), Vanek (LW/RW)
RW: Ovechkin (LW/RW), Backes (C/RW), Callahan, Versteeg (LW/RW)
D: Byfuglien (D/RW), Phaneuf, Suter, Franson, Gudas
G: Price, Bobrovsky, Allen
IR: Elliott, Dubinsky (C/LW)