That tired old saying? I've driven past thousands of road work sites over the past 35 years and have yet to witness the situation you described.
Are you blind? I have been in the trade almost thirty years. I see it all the time.
The funniest thing I ever witnessed were two girls trying to set a stop sign. A one man job, yet these two could barley lift the post to set it.
I really doubt that but even if I give you the benefit of the doubt just remember that nearly all major road repairs are carried out by contractors.
I really dont care if you are a believer or not. I have experience in the field and so does my wife who is 13 years vested with the laborers local. Those contractors you speak of are union. Prevailing wage and all of that.
I laugh at you because just last week I once again witnessed what was just described.
So you've been in the trade 30 years and your wife for 13. So I'm guessing that you do the same thing or you're a notable exception to the rule?