https://www.si.com/vault/1997/04/14/8113107/no-regrets-mario-lemieux-has-decided-to-end-his-brilliant-nhl-career-and-for-himbut-not-for-the-penguinshis-retirement-is-coming-not-a-moment-too-soon
"With fewer penalties being called, scoring is down league wide this season, and shutouts are up. The number of power-play goals has dropped 26% since last season, from 1.81 per game to 1.34. "Goaltenders are certainly better than in the past," Lemieux says. "The coaching is better too. Now even bad teams have [defensive] systems. If the refereeing was different, the systems would still work, but not as well. In basketball, teams that don't have talent don't win. Hockey is different. The NHL allows lesser players to get away with things. It's a good time for me to get away, because if the league expands again, the problem will just get worse. There will be more and more unskilled players."
And one less magically skilled player. When Lemieux is asked if he would reconsider retirement if the NHL assured him that next season the refs would enforce the rules as written, he shakes his head and smiles ruefully. "They've fooled me once," he says. "They're not going to fool me twice."