Investors have no idea what thickness the wall should be in their building either. Clients not being experts at the job they are getting somebody else to do is

Investors have no idea what thickness the wall should be in their building either. Clients not being experts at the job they are getting somebody else to do is not a new pattern. So while some trust is required, it's best if you can get somebody else to verify. I've seen a few smart clients over the years which when faced with some excuses from a software house hired another one to give them opinion about the codebase and capabilities. It seems pretty intuitive. It seems like a money well spent.