David Hernandez vs. John Lannan — Career Comparison

John Lannan built a career as a starting pitcher and David Hernandez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John Lannan led in home run suppression (HR9+ 109 vs 74), run prevention (ERA+ 103 vs 83), and walk avoidance (BB%+ 97 vs 92). David Hernandez held the edge in strikeout rate (K%+ 105 vs 69). Role difference aside, John Lannan holds a clear edge on every meaningful shared measure.