Kupp for David Montgomery?

I feel like I’m thin at rbs. I have mixon, Gibson, drake and Javantae Williams. My receivers however are Ceedee, Kupp, Antonio brown, Scary Terry and Juju. I fee I can afford to give up someone like Kupp would this be a good trade? It’s full Ppr league

I would maybe offer Antonio Brown first. I think you can rely on Cooper Kupp to preform like he did Sunday night every day, but Antonio Brown may not have the game that he did Thursday night.