Trade Shepard for Cohen in full ppr, half point first downs in Dynasty?

I have too many wrs, I need another rb.

I’m considering it but just nervous that Montgomery could become a 3 down back and the Bears traded up to get him.

Shepard is young and I’m interested to see how he does with Jones the new qb.

What do you think?

Thank you in advance!

In full PPR Cohen will be more useful if you’re stacked at WR. I think it’s a nice sideways trade if you need help at RB