Mark Johnson vs. Heathcliff Slocumb — Career Comparison

Mark Johnson built a career as a starting pitcher and Heathcliff Slocumb as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Heathcliff Slocumb posted stronger surface numbers — ERA 4.08 and WHIP 1.639 compared to 7.5 and 1.750 for Mark Johnson. By the career numbers, Heathcliff Slocumb had the better of this cross-role comparison — though era context would sharpen the verdict.