Trade or stay with what I have

Standard 12 team I am 6-2 and 3rd in points scored so far.

Cant decide if I should stay with what I have or trade some players to give me options heading into the playoffs. Feel like my WR corps might be a let down later in the year. Thoughts?

RB=Gorden, Thompson, Breida, Powell
WR=Cooks, Agholor, P Richardson, Doctson

Have watson stafford and mariota at qb and Ravens and Jags dst.