Paul Hartzell vs. Slim McGrew — Career Comparison

Paul Hartzell built a career as a starting pitcher and Slim McGrew as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Paul Hartzell posted stronger surface numbers — ERA 3.9 and WHIP 1.383 compared to 6.6 and 1.900 for Slim McGrew. By the career numbers, Paul Hartzell had the better of this cross-role comparison — though era context would sharpen the verdict.