Jack Leiter vs. Mike Roesler — Career Comparison

Jack Leiter built a career as a starting pitcher and Mike Roesler as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mike Roesler posted stronger surface numbers — ERA 3.77 and WHIP 1.258 compared to 4.8 and 1.361 for Jack Leiter. By the career numbers, Mike Roesler had the better of this cross-role comparison — though era context would sharpen the verdict.