Editing Vitality curve (section)

===Yahoo===
[[Yahoo]] CEO [[Marissa Mayer]] instituted its "QPR" (quarterly performance review) system in 2012, using the rankings: Greatly Exceeds (10%) Exceeds (25%), Achieves (the largest pool at 50%), Occasionally Misses (10%) and Misses (5%).

In a new version for the fourth quarter 2013, sources said the percentages are changing, but only at the discretion of leadership within the units: Greatly Exceeds (10%), Exceeds (35%), Achieves (50%), Occasionally Misses (5%) and Misses (0%). This new evaluation system resulted in 600 [[layoff]]s in the fourth quarter of 2013.<ref>{{cite web|last=Swisher|first=Kara|title=Because Marissa Said So — Yahoos Bristle at Mayer's QPR Ranking System and Silent Layoffs| url= http://allthingsd.com/20131108/because-marissa-said-so-yahoos-bristle-at-mayers-new-qpr-ranking-system-and-silent-layoffs| access-date=13 November 2013|publisher= All Things D|date=8 November 2013}}
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