Who To Trade for P. Manning?

[KHowe]

One of the guys in my league is in need of a RB (not that I'm not...). He had Ryan Grant, and now is stuck with basically no one. He is looking for trade offers to get help there. All I have to really offer him is Marion Barber, since I myself am not that deep at RB. What would you guys recommend sending him for an offer? And is it worth it, will Peyton even play when it's fantasy playoff time or will he be on the bench again...

Also, its a PPR league.

My roster:

QB M. Ryan
RB1 McCoy
RB2 B. Jackson
WR1 Andre Johnson
WR2 Roddy White
TE Antonio Gates
OP J. Cutler

Bench
M. Barber
D. Brown
O. Daniels
D. Bess
M. Clayton
J. Gaffney
L. Washington
---------------------------------------------------------

His Roster:

QB Peyton Manning, Ind
RB Ryan Grant*, GB RB IR
RB Jerome Harrison, Cle RB
WR Anquan Boldin, Bal WR Q
WR Chad Ochocinco, Cin WR
TE Chris Cooley, Was TE
OP Hines Ward, Pit WR
K David Akers, Phi K

Bench Thomas Jones, KC RB
Bench Devery Henderson, NO WR
Bench Ben Roethlisberger, Pit QB SSPD
Bench Willis McGahee, Bal RB
Bench Antonio Bryant, FA WR Q ** BYE **
Bench Mike Bell, Phi RB P
Bench Joey Galloway, Was WR