Make or break trade

My team in a 16 team .5 ppr
QB Carson Wentz
WR Antonio Brown
WR Adam Thielen
RB Dion Lewis
RB Mike Davis
TE Benjamin Watson
W/R Cooper Kupp
W/R/T Alshon Jeffrey
K Succop
DEF Seattle

Bench
Matt Stafford
Danny Amendola
Duke Johnson
Ronald Jones
Legarrete Blount
Darren Sproles

Currently in 5th place (top 6 go to playoffs)

Another team proposed this trade:
I get Gurley, Royce Freeman, Kelvin Benjamin
I give Jeffrey, Kupp, D Lewis

I’m trying to work out a counter to strengthen my RBs

His team:
Cousins
Baldwin
P Rich
Gurley
S Michel
O Howard
C Meredith
J Doctson
Bench
J Crowder
S Shepard
TJ Yeldon
R Freeman
K Benjamin

Any counter ideas?