I actually own Seguin in a league and value him highly, but with your positions - LW, etc. I'd actually keep what you have. Tara on the wing will be very valuable. And as previously stated, you are loaded at C. I like where your roster is at. You have Markstrom in the wings, rewdy to replace Luongo. I wouldn't mess that up.
League: Yahoo 20 Team Dynasty, H2H (4C, 8W, 6D, 1G)
Cats: +/-, FOW, A, G, GWG, PPP, SHP, SOG, S, SPct, W, GAA
Bench: Braun,B.Flynn,B.Gordon - J.Bernier,O.Pavelec,V.Stalberg
Clendening,Deslauriers,Gauthier-Leduc,J.Morrow,R.Murphy,Petrovic,Reilly, -- M.Hackett