Just for the heck of it.
Anyone ever hear of the 80/20 rule? It's a sales concept which basically says that 80% of your sales will be produced by 20% of your sales force. Hard core management books often comment that the worst thing managers do is try and get the 80% to produce. It won't happen. The argument is that management should focus it's efforts on the 20% and they'll get better results.
I'm not advocating anything with this. Just thought it might make interesting food for thought.