Welcome back -- WR Laveranues Coles.
My two cents: WR Jerricho Cotchery's groin injury may be nagging him a bit. Remember, the Jets gain a roster spot as SS Jim Leonhard is now on I-R.
Manish Mehta confirms it:

TheJetsStream Manish Mehta
Confirmed that #Jets will sign WR Laveranues Coles on Sunday. I'm hearing he may be with #NYJ for a week or two. #nfl #patriots
Update: Cimini adds some clarification.

RichCimini Rich Cimini
#Jets signed L. Coles for emotional spark, leadership. Also allows Coles to retire a Jet, which could be real soon, like Tuesday.