[berntb]

If we put it this way, you answer your own question: :-)

>> How do you know the data becomes more normal as your add [data points]?

That said, yeah this is crazy.

The worst problem with stack ratings is not what it do (firing people which don't work out will happen, it is often good even for those fired).

The worst problem is that it destroys team culture as it is described at Microsoft: "if you're in a too good team, switch or you'll be fired." It gets hard for managers to build good teams when the individuals even have an incentive to sabotage each others. And so on.

Edit: The first part had a ":-)" on it. I think that is not interesting, compared to the idea of being in a team with people that have motivation to screw their team mates over. Like being in prison or playing the Paranoia RPG (an orc in Sauron's army?)

[Retric]

Not all data fit's a bell curve. In fact most does not which is a real issue that's ignored by way to many people.

[robododo]

Any Stack ranking using a Bell curve would be dumb. Nobody I'm aware of does that. Most curves look more like a Chi Square Curve, which is far more top heavy.