I would look to deal Ehrhoff away.
(So did I, when owning both of them a week ago)

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Yahoo - 8 Teams - Dynasty League
(G,A,SOG,HIT,BS,+/-,W,GAA,SV%,SO)

F: Crosby | Malkin | Ovechkin | Giroux | Toews | Perry | Bergeron | Kovalchuk (IR) | Duchene | Benn | Backes | Callahan | Landeskog | E. Staal | J. Staal | Galchenyuk | Gallagher | Silfverberg | Doan
D: Letang (IR) | Seabrook | Keith | Girardi | Green | Ehrhoff | Ellis | Kulikov | Trouba | Beaulieu | Spurgeon | M. Staal (IR) |
G: Lundqvist | Fleury

2006: 9th | 2007: 5th | 2008: 5th | 2009: 2nd | 2010: 1st | 2011: 1st |

Yeah that would have been the best option, no offers on him yet.

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16 team H2H keep all - 1st Place in 2010-11
C: Datsyuk, M. Koivu, Krecji, Cervenka
LW: Parise, Franzen, Skinner, Glencross
RW: Pavelski, Marchand, Brunner, Shaw
D: Byfuglien, Phaneuf, Burns, Carle, Keith, Martin, Beauchemin
G: Lundqvist, Halak, Backstrom
Prospects: Hackett, Murray, Bjugstad, Poulin, Vatanen, Rattie, B. Nelson, Fasth

I would hang onto Letang (rather than a 1 for 1) but why not see if you could package Letang and Erhoff together. What other D could you get from the Keith or Yandle owners. This might make a trade more appealing.

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15 Team League (keep 7 this year, 5 last)
1pt - G/A/PPP/SHP/GWG
0.25pt - PIM
3pt - Wins/SO

F: Ovechkin, Malkin, Tavares, Kovalchuk, Kopitar, Ennis, Johansson
D: Carlson, Goligoski, Josi
U: Niskanen
G: Niemi
Bench: Vokoun,Tlusty,Williams,Andy Mcdonald
IR: Ward, Karlsson


10 Team League (non keeper)
1pt - G/A/PPP/SHP/GWG
0.5pt - PIM
3pt/5pt - Wins/SO

F: St Louis,Ott,Voracek,Benn,Malkin,Duchene
D: Edler,Weber,Burns
U: Kunitz
G: Rask, Hiller
Bench: Backstrom (Min), Kiprusoff, Fasth
IR: Sharp