If I was an engineering manager in an org which actually valued getting sh*t done - vs. bragging rights, head counts, and PHB politics - then I'd notice within a month that Engineer A (who the article has shipping in a couple days) got far more done then Engineer B (who needed 3 weeks).

And long before performance review time, I'd have mentioned further up that A was looking like a 5X engineer - best if we keep her happy.