I'd just say it's because of the nature of the business. If you look at the air and the road worlds, which I deal with, you have relatively few people who do 99% of the work. In trucking, there are a few large companies that do a lot of the work, but there are so many individual contractors and small people, that to even have them.... They think they can do the job, but they can't do the work. They just can't do it.
