Jack Morris is one of those guys that, if you had asked people in the middle of his career, they would have told you he was a sure thing Hall of Famer. He was the ace of the Detroit Tigers staff for years and was thought of as a winner. Now we tend to look at run support, then we'd say 'he pitches well enough to win'.
But he was a good pitcher, he pitched 18 seasons, won 254 games (42nd all time) while losing 186, had a 3.90 ERA in 549 games. 2478 strikeouts puts him 31st on the all-time list. He won 20 games 3 times, an All-Star 5 times, never won a Cy Young but was in the top ten in voting 7 times.
And he has 3 World Series rings, one with the Blue Jays. He was 7-1 in the playoffs, until 1992 with the Jays, when he lost 1 ALCS game and 2 World Series games. His most famous game was a 10 inning complete game shut out over the Braves in game 7 of the 1991 World Series in Minnesota. That has to be one of the best pitching performances I've ever seen.