Ahman Green has gotten no better as his career has progressed in terms of fumbling, in fact it seems to have gotten worse.
http://sports.espn.go.com/nfl/player...s?statsId=4261
Still, very few teams wouldn't rather have Green than their own RB. I'm sure the Redskins are one of the few that wouldn't.
As for McGahee, I have my doubts that McGahee directly stated "start me or trade me" He probably said something like "My goal is to be the starter of this team, that's what I'm playing for. I don't want to be a backup." Which is a totally understandable thing to say. I understand Henry said the same thing, but at least Henry have some NFL clout, For right now, McGahee doesn't.