Welker for Charles in PPR

[mikeymase]

Looking to add another rb to my Squad, I have somoene offering me Charles for welker, heres how my lineup stands as is

Eli Manning
R Mathews
Alfred Morris
CJ spiller
Cruz
Welker
Vincent Jackson
Finley


Bench: Boldin, Moss, Moss, Luck, Redman

I can trade Welker for Jamaal Charles, its a PPR format, what yall think?