Trade Murray&Cook for Bell?

In legitimate need of advice as a 3-4 playoff hopeful…

Should I trade my Murray & Cook for Le’Veon straight up? Do we expect Bell to be in a timeshare upon his return? Do we expect Cook’s hammy to EVER get right and have him back in a workhorse role (I kinda doubt it)?

Other RBs: Barkley, Kerryon, Chubb, Chris Thompson.
WRs: Thielen, Thomas, Watkins, MJJ
TE: Njoku
QB: Mahomes