Mike Caldwell vs. Joel Johnston — Career Comparison

Mike Caldwell built a career as a starting pitcher and Joel Johnston as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mike Caldwell posted stronger surface numbers — ERA 3.81 and WHIP 1.345 compared to 4.31 and 1.296 for Joel Johnston. By the career numbers, Mike Caldwell had the better of this cross-role comparison — though era context would sharpen the verdict.