IMO, not a good trade for you. You may lack depth at RB but you have two solid starters. Your WR’s are iffy after Metcalf, Chase could be good if Burrow gets better protection and OBJ is hurt… giving up your WR1 and not getting any WR love back kills the deal for me.
CEH < Mixon
Metcalf = Swift
Mattison < Cook (esp. when all you have is Goedert)
But as was mentioned, your WRs after the deal are Chase, Watkins and OBJ, with Hilton on IR–that’s not good enough to make up for the gains at RB and TE.