Need help on Bell trade offer

there’s a guy in my league that is offering me Le’Veon Bell for Marshawn Lynch…not sure what to do here because we don’t know when bell is coming back…right now my running backs are Leonard Fournette, Lynch and i just picked up Bernard because Mixon might be out…any opinions on if i should take the Bell trade offer?

Well look at it this way let’s say bell doesn’t come back till week 10 that only gives you 4 games with bell. 6 if your in the playoffs. But is he going to be in football shape. I mean look at last year it took him almost half the year to get it going. Just alot of risk and unnecessary worrying to lose a starting rb