[ukigumo]

>One problem with organizations that bill by the manhour--law and consulting--is that even if the employee output diminishes, the firm still bills the same rate. There isn't a lot of incentive to keep your employees heads fresh.

I think you've hit a pretty good point straight in the head here. The article also seems to focus on a consulting company which very likely sells man-hour packages so it is on their best interest to have "heroes".