Juan Alvarez vs. Mark Johnson — Career Comparison

Mark Johnson built a career as a starting pitcher and Juan Alvarez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Juan Alvarez posted stronger surface numbers — ERA 5.22 and WHIP 1.657 compared to 7.5 and 1.750 for Mark Johnson. By the career numbers, Juan Alvarez had the better of this cross-role comparison — though era context would sharpen the verdict.