Kelvin Benjamin moving forward

Kb was dropped and is a free agent now. I recently traded my wr4 away and need to fill that spot. In doing so I would need to cut a running back.

Here is my line up:

Wide receivers: Baldwin, Keenan Allen, stefon diggs

Rb: bell, Zeke, tymont, mixon, buck Allen, foreman, kamara

7 rbs, 3 wrs

It’s a 2rb, 2wr 1flex league

What do