See, this is the real issue here. If we have Carr or Taysom or Winston or freakin Pat Mahomes back there, it won't make much difference if the line can't open up holes for the running game and continually has d-linemen in the QB's face half a second after the snap.
And unfortunately i dont think offensive line play is something you can turn around in season. Its like expecting a bad secondary to stop giving up long passes.