Trade McCoy for Alshon?

I was just offered Alshon Jeffrey for LeSean McCoy and I need help deciding if I should do it or not.

In a vacuum I think I would do this trade, but my roster has be debating it.
0.5ppr, 12 team, keeper league and I’m currently 2-4.
Behind my starting RBs I don’t have much depth other than McCoy and once Kupp comes back Alshon may not be in my starting lineup.

QB-DeShaun Watson
RB-Christian McCaffrey
RB-Mark Ingram
WR-AJ Green
WR-Stefon Diggs
TE-OJ Howard
FLEX-LeSean McCoy
D/ST- Chargers
BE-Chris Hogan
BE- Philip Rivers
BE-Buck Allen
BE-Vance McDonald
BE-Duke Johnson
BE-Jermaine Kearse
IR-Cooper Kupp

What do you think?