Montgomery for Kupp or Woods

In a Dynasty league, I’m looking at possibly trading away David Montgomery for either Robert Woods or Cooper Kupp. I have plenty of depth at RB with Jacobs, Mixon, Gibson and Ekeler. Montgomery is expendable in my opinion. Need a good WR2 to go along with Ridley, Lamb, Shenault, Higgins, Deebo and Sutton(IR). League plays 1 QB, 2 RBs, 3 WRs, 1 TE and 2 FLEX