John Firth vs. Aaron Nola — Career Comparison

Aaron Nola built a career as a starting pitcher and John Firth as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Aaron Nola posted stronger surface numbers — ERA 3.83 and WHIP 1.158 compared to 8 and 2.111 for John Firth. By the career numbers, Aaron Nola had the better of this cross-role comparison — though era context would sharpen the verdict.