Jonnu for Fournette?

I have two solid TEs in Fant and Jonnu but struggling at RB after Conner. Best RB offer I could get is Fournette. Should I pull the trigger or hold? I am 0-3. Other RBs are Mike Davis, Swift, Mattison, and then Malcolm Brown (planning to drop for Hyde) and Snell (may try to get Brian Hill). 1/2 PPR. Thoughts?

Personally I would trade Fant before Jonnu. But this trade seems reasonable. It’s swapping prospects. Someone might win it, most likely neither of you do.