Fournette Trade Offer. Need Advice

So basically after injuries to my RB situation this year I am down to Leonard Fournette, Miles Sanders, Penny and Ballage. I am sitting at 3-6 with still a chance to make playoffs since the league takes 8/12. Below is my offer from a guy who has been trying to get Fournette from me all year.

My: Fournette
His: Marlon Mack, Ronald Jones and Latavius Murray

I can’t seem to pull the trigger but I desperately need a win this week to still be in playoff contention. Any advice would help. Thanks Footclan!