It could be like Sullivan or it could be like Josh Lievo or Sonny Milano, Robbie Schremp, Wellwood.
Sullivan wasn't a victim of production but Quinn's/Dryden. Quinn's love affair with top physical players who were big. NHL cared for big players back then
Sullivan though had more than way to contibute, everyone knew he had really good hands, great skater. He fell behind Leafs depth chart. Especially Quinn's again, love affair with big veterans
Robertsson has been given every opportunity, with good players in key situations.