Now Playing: 11-13-13 Marketplace - Stacked

Stack ranking is the office equivalent of grading on a curve. Jack Welch, at GE, brought stack ranking to the fore. And Microsoft used to use it -- but has now killed it; even as Marissa Mayer, Yahoo’s glamorous CEO, is ramping it up. Plus, new guidelines on the use of statins to lower cholesterol hold the promise to dramatically increase the number of Americans who take those drugs. Most of them are available as generics. Finally, a group of Occupy Wall Street activists has started to buy securitized personal debt on the cheap – and then forgive the debtors — not only to lift the burden from individuals, but to raise awareness about the debt collection industry and how to resist credit.