Should I trade for Kamara with...?

My league mate that has Kamara is in trouble with his record, his other RB’s are Morris and Howard. I have a handful and he is willing to listen to trade offers in order to help get him some wins.

My RB’s David Johnson, Sony Michel, James Conner, Lev Bell, Kerryon Johnson, Corey Clement, D Foreman.

I was thinking of trading David Johnson and Corey Clement for Kamara. Or David Johnson, and Kerryon. Even though the Cardinals suck Johnson still puts up 10-20 points per week. Is anyone worried about the Ingram, Kamara share? Is Johnson still worth trading away?