Been thinking about this. Danny is playing really good right now. His stock is fairly high and will get higher if he keeps it up. But a few thoughts...
1) Watching Danny and Paul play together, it seems like Danny is in Pauls way. I feel like George should be the man and he can't, becausE he defers to Danny. So his play looks clunky at times. It's kind of like Paul doesn't know when to assert himself, because Danny is here. Also, I think Paul is playing out of position. I think he's a 3. Not a 2. I don't think Paul can fully blossom until Danny is out of the way.
2) I like Darren Collison, but there are PG's available that could really push Indiana to a legit contender status. Darren just isn't there yet. He's solid though and I think he could get there. Which is why I think you keep DC.
A George Hill, Granger and 2012 first rounder could net you something really nice. Boston might take that for Rondo and another contact. Maybe you get Nash and Dudley or Lopez or Gortat. I dunno, my point is, trading Danny Granger while his stock is high, makes so much sense right now and could not only make you a legit contender for the title depending on what you get back, but also could pave the way for #24 to become a top SF in the league.
I love Danny. His defense, in my eyes, has been amazing . And his shooting is coming back. But it just makes sense to trade him. Sometimes the difference between a title contender and a title pretender is whether or not your GM has the guts to see past loyalty and make a cutthroat move at the deadline. This is the move. Danny is the peice.