I have Cooper and my QB situation is awful (Cam Newton, D Carr and Teddy Bridgewater). I do have some depth at WR (Metcalf, Kupp, DJ Moore, Tyrell Williams, Dede Westbrook, Deebo Samual to name a few). With 16 bench spots per team my only way to adde a QB is via draft or trade, no chance at picking anyone up.
I really think you could get a more consistent QB for Cooper. He’s the number 1 option n a team with a good QB and good offense. You do have some depth but giving up Cooper (a young talented player on a high scoring team) seems to be risky for a QB with previous injury history