Advice 4 dynasty trade

I am wondering if I should try and trade Fournette off his good week? If so, what do you think I could get in return?

Current Roster:
Murray/Newton
Ingram/A.Jones/Fournette/Dobbins
Golladay/K.Allen/DJ Moore/Julio Jones
Hockenson

I am looking to upgrade my running backs. The uncertainty of Fournette and Ingram worries me.