Trade for a QB?

in a large 32 man roster with IDP should i keep what i got or try and upgrade with brady or Dak?
no one left to stream, need to start 10 off players, TE are mixed with wr thats why i have 4, looking to trade one out. guy with Dak has been bugging me for bell and ertz but im not trading at top rb for dak or brady

qb: dalton, Brissett, goff, McCown

RB: Bell, Hyde, Shady, Gore

WR: Crabtree, Green, jordy, parker, engram, ertz, graham, gronk