What to move Mixon for in PPR?

Watching Mixon’s usage and his line in Cincinnati makes me sad and I have depth at RB to get rid of him, what sort of moves shoud I make to improve my roster (mainly at WR).

Current Roster:
Allen
Sanders Drake Mixon Gordon Freeman Edmonds
Woods Lockett Lamb Chark
Gesicki Hockenson

Why not package Gordon and Chark for a top WR?

I don’t feel like anyone in my league would accept that due to a few of them not really knowing who Chark is and the fact he hasn’t been stellar so far. I would absolutely do it if I could though.