from a ppr league perspectve you can estimate these average point production per game:
bernard - 15-25
olsen - 7-15
stacy - 15-20
graham - 15-25
so i would say no. dont make the trade if it is in a ppr league.
Who ever is getting graham/Stacy is making out like a bandit.
I would not make the trade.
Was offered Gio Bernard and Greg Olsen for Zac Stacy and Jimmy Graham. 10 team standard. Worried that Hill will eat into Bernard's workload, then again Stacy is in a 3-man approach.
My team
Romo
Peterson
Foster
A Brown
V Jax
Olsen
Bernard
Greene
Spiller
Colston
Evans
Hopkins
Wallace