Mike Jackson (the baseball player, not the singer, though I never heard anyone call the singer Mike, always Michael....pretty formal) had a really good career as a reliever. Unfortunately, for his Hall of Fame chances, most of his career he was a middle reliever or set up man. He had a couple of seasons near the end of his career as a closer, but finished his career with only 142 saves. All told, in his 17 year career he was 62-67 with a 3.42 ERA in 1005 games with 8 teams. He's 12th in games pitched.