Frank Carswell vs. Ron Keller — Career Comparison

Frank Carswell built a career as a starting pitcher and Ron Keller as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ron Keller posted stronger surface numbers — ERA 3.38 and WHIP 1.453 compared to 9.64 and 2.250 for Frank Carswell. By the career numbers, Ron Keller had the better of this cross-role comparison — though era context would sharpen the verdict.