Junior Guerra vs. Jeff Zaske — Career Comparison

Junior Guerra built a career as a starting pitcher and Jeff Zaske as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jeff Zaske posted stronger surface numbers — ERA 0 and WHIP 1.000 compared to 4.06 and 1.362 for Junior Guerra. By the career numbers, Jeff Zaske had the better of this cross-role comparison — though era context would sharpen the verdict.