Trade before deadline?

My current roster by position is -
QB: Rivers, Keenum (usually a weekly streamer)
RB: Melvin, Howard, Demarco, Lewis, Drake
WR: Julio, Evans, M. Thomas, Parker, Finches
TE: Reed, V. Davis

The question I have is do i keep my depth to finish the season and go into the playoffs with it or do I trade my depth away to get elite players and fill my QB need as well as have roster spots for position streamers (QB/D)? Trade deadline is the 22nd.