Mark Johnson vs. Mike Sullivan — Career Comparison

Mark Johnson built a career as a starting pitcher and Mike Sullivan as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mike Sullivan posted stronger surface numbers — ERA 5.04 and WHIP 1.674 compared to 7.5 and 1.750 for Mark Johnson. By the career numbers, Mike Sullivan had the better of this cross-role comparison — though era context would sharpen the verdict.