Stack ranking: Steve Ballmer's employee-evaluation system and Microsoft's decline.

There were many reasons for the decline of Microsoft under Steve Ballmer, including, as I wrote this morning, its lack of focus and its habit of chasing trends rather than creating them. But one that’s not obvious to outsiders was the company’s employee evaluation system, known as “stack ranking.” The system—and its poisonous effects on Microsoft’s corporate culture—was best explained in an outstanding Vanity Fair feature by Kurt Eichenwald last year.

Anyone interested in Microsoft or business administration should read the full piece. But here’s an excerpt from the part where Eichenwald explains stack ranking:

So while Google was encouraging its employees to spend 20 percent of their time to work on ideas that excited them personally, Ballmer was inadvertently encouraging his to spend a good chunk of their time playing office politics. Why try to outrun the bear when you can just tie your co-workers' shoelaces?

Microsoft wasn’t the first company to adopt this sort of ranking system. It was actually popularized by Jack Welch at GE, where it was known as “rank and yank.” Welch defended the practice to the Wall Street Journal in a January 2012 article, saying, “This is not some mean system—this is the kindest form of management. [Low performers] are given a chance to improve, and if they don't in a year or so, you move them out. "

As the Journal and others have noted, what seemed to work for Welch—for a time, anyway—has produced some ugly results elsewhere. Even GE phased the system out following Welch’s departure. But in an interview with the Seattle Times just last month, Ballmer indicate that he was sticking with it. From the Seattle Times:

It will be interesting to see whether Microsoft’s next CEO takes more personal responsibility for the company’s corporate culture—or leaves it for Lisa Brummel to take up.