By "run blocking" I meant to say "pass blocking". But my assertion is the same: if Belichick doesn't view Maroney as a starter, he has to look at their factors and evaluate what's best for the team. Let's play "Madden" and give them letter grades, and assume Belichick thinks BJGE runs a hair better. And let's assume Belichick thinks Maroney needs to be ridden by a coach to keep him focused (which I think is pretty evident by the amount Fears yaps at him and how bad the fans are "dancing" in Maroney's head, judging by that quote from him).
Maroney
Running: B-
Pass blocking: B+
Receiving: B+
Trade worth: A-
Headcase Quotient: F
BJGE
Running: B
Pass Blocking: C+
Receiving: C
Trade Worth: F
Headcase Quotient: A
Given a team with Tom Brady at QB, Randy Moss at WR, a deep and talented WR corps, three hopeful stud TEs who can catch and block, and a stable of decent backs (Morris, Taylor, Faulk, maybe Chris Taylor or BJGE), you just have to wonder when they decide it's shit-or-get-off-the-pot time.
It's not that I hate Maroney. I'd be more than happy to see him shock us all and run for 1500 yards. I just don't see him living up to the potential he supposedly had, especially for where he was drafted, and if Belichick can get something for him in trade I wouldn't cry. I don't think we'll be looking back at this season and saying, "God, what could have been... this team was SO close, if only they hadn't traded Maroney...". JMO, YMMV.