If you do this trade, you're left with only 2 SP you can count on most every week (Lince, Lester). The others are questionable every time they pitch. I'd try to get more quality bats (doesn't need to be a top, top bat, but 2-3 bats that would allow you to rid yourself of guys like Encarcion and Theriot. If you're going to trade away one of your ace pitchers, make sure you add quality, and hopefully more than one, to your offense.
Granderson has certainly been hot so far this year, but his track record doesn't really support his staying that way long term. You'd be giving up an ace that will be there for years to come.
I wouldn't take this offer.
10 Team H2H Pts Dynasty
Arencibia,Hosmer,Kinsler,Tulo,Bruce,Stubbs,Rasmus,Morrison,Beckham,McGehee,Lind,Lawrie,Zimm (DL),Belt (DL)Trout (ML)