...Given that Barack Obama has never participated in any capacity on a construction worksite, how can you blame him for the hiring/firing/payment disputes?

As for myself, my wife and I hired a contractor to make a major addition to our home and we picked a Contractor to manage the project...we had no idea or cared which subcontractors he hired for electrical, plumbing, sheet rocking, windows, etc....that way we had just 'One Neck to Squeeze' if it the job ran over budget, time or failure to pass inspection.

You're dead wrong...and should know better. Obama is not responsible for the General Contractor's decisions.