A while back I was called in to rescue a project that was off the rails. The GC had nothing but excuses why it was a month past their contracted completion date and finishing anytime soon was not on the horizon.
The Owner called me to come in and get the project back on track. When I arrived at the jobsite it was pretty easy to see what had and was happening. There was an enormous amount of subcontractor employees on site. If one did not know what to look for it would seem that there were plenty of techs on site for each trade to have this project humming along toward completion.