José Fermin vs. Jack Leiter — Career Comparison

Jack Leiter built a career as a starting pitcher and José Fermin as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. José Fermin posted stronger surface numbers — ERA 4.46 and WHIP 1.456 compared to 4.8 and 1.361 for Jack Leiter. By the career numbers, José Fermin had the better of this cross-role comparison — though era context would sharpen the verdict.