"I would hope a worker is able to shop his skills to multiple bosses. I also hope he is not trapped in a Union field that Puts ceilings on his ability to earn a fair wage."
I'm not going to start a discussion about unions, as that will require another thread and I'll be leaving on a vacation tomorrow 
"I dont Choose my Clients, Alan. My clients choose me. When they choose me, I become the boss of their project.
All they have to do is hand me the check, and we move on to the next phase.
In between phases, if they breech the contract.....I have the option of walking. Its something I rarely do, as I said before. It is bad business to walk, but its also something you must do to survive. Cant have an overbearing owner. You learn to pick these types out when you do the intitial meet though."
Yes, they chose you, and because of that, they have certain demands, pretty much like a solicitor gets chosen by his boss. When they chose a particular employee, he became boss of that position too (it might be a project). The bosses too pay the employee.
In between phases, a boss has to meet certain agreements too, or the employee walks. Not much difference there is there? In both cases (employee or your situation) the bosses/clients can redraw the position/project. In the first case, you're unemployed and in the 2nd you lose a paying client. I took your comment and paralelled it (by replacing you with an employee). You can twist it and turn it, but from a macro vision it's all the same 