Trade Sammy Watkins/JStew for Cobb/Riddick

Accept or decline the trade offer?

RBs: McCoy, Crowell, Buck Allen, Adbullah, Kamara, JStew
WRs: Dez, Tate, Tyreek, Sammy

Out of those four players, I guess I would only consider playing two. Sammy as high as a flex, and cobb as high as a wr2. Jstew and riddick just seem so underwhelming, so yes, I would accept.