You can't judge the quality of a start in baseball when ER is a major part of the equation. You go 6 IP with 10 hits and 5 BB but somehow get 0 ER you didn't have a quality start, I dont' care if you had quality results.
But to keep this in the context of what to do with a league like this, go after good pitchers who have a high IP per start value. Guys like Sabathia, Halladay etc. Stay away from guys who don't go deep into games like a Harden or Kazmir.
Also look for groundball pitchers and guys who don't walk a lot of people, they tend to be a bit more consistent game to game. Also a team with a good bullpen can help out here, especially good middle relief.