Having worked on this the realization came that the problem isn't one that can be solved with software. There are a million solutions that in theory should work, if that were the case. The problem is a large percentage of people who work in the trades are flaky. This is not something that the SV crowd can understand. They don't want to be more efficient. They know their jobs can't ever be outsourced. They want to work when they want to work and to be at the bar or on their boat if weather permits.