Mike Armstrong vs. Billy Norman — Career Comparison

Billy Norman built a career as a starting pitcher and Mike Armstrong as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Billy Norman posted stronger surface numbers — ERA 3.4 and WHIP 1.248 compared to 4.1 and 1.405 for Mike Armstrong. By the career numbers, Billy Norman had the better of this cross-role comparison — though era context would sharpen the verdict.