Thomas/Mack for Freeman/Parker. Advice needed

I’ve just been offered the following from the 7-1 team in our 1/2PPR league. I’m 4-4.

He is offering: Michael Thomas and Marlon Mack
He wants: Devonta Freeman and Davante Parker

My Roster:
QB: Prescott
RB: Freeman, Abdullah, Tevin Coleman, Alex Collins, Dion Lewis, Derrick Henry, Danny Woodhead (IR)
WR: A.J. Green, Davante Parker, Corey Davis, Josh Gordon
TE: Jack Doyle, Hunter Henry

Does he know something about Michael Thomas or Devonta that I’m missing?