"I'd be willing to bet that Mayer has done more as an engineer than most engineers at Yahoo" really? any evidence for this? (not snark, genuinely curious) I've

"I'd be willing to bet that Mayer has done more as an engineer than most engineers at Yahoo" really? any evidence for this? (not snark, genuinely curious) I've never heard of Marissa Mayer as a top 1% engineer (vs a 'strong' manager)