I guess I'll be the lone ranger here... but I say no, keep Bradshaw.
He will still be heavily involved b/c he's such a versatile back and the Giants o-line will open up some great holes for him. He'll also get a number of passes his way... dude is talented.
Also, Brandon Jacobs (while a beast) is very vulnerable to going down at some point during the year. And when he does, Ahmad's value explodes.
I think both backs are probably equally as talented and yes Davis is in a better situation to succeed according to the latest news. But don't let hype make up your mind for you.
You have Jacobs so it's even more important to have Bradshaw in case he goes down. Davis is a hit or miss this year - we don't know how well he'll do in the regular season just yet.
2010 12-team .5PPR
QB - Ryan, Vick
RB - S. Greene, Forte, Stewart, F. Jones, Sproles
WR - Moss, Megatron, NYG Smith, Floyd, M. Williams (TB)
TE - Cooley
D - CIN (week to week)
K - Bironas