consider: here on HN commenters will often deride decisions made "anyone in the field with half a brain should know...".
But if you don't have that requisite someone in the field with half a brain, and when someone who literally makes money from convincing you they are experts tries to sell you...anything, how can you possibly evaluate the truth of their claims?
I saw this in state govt when they would try to hire someone - without programmers on staff, how can you evaluate if someone is a decent programmer? This goes beyond the normal problems of interviewee evaluations - you can get people that can't do fizzbuzz and you'd not be able to tell. Being able to tell the difference between "experienced expert" and "halfway competent but way over their head" isn't even an option.
It's a hard thing for an organization to overcome - as far as I can tell, absent some trusted 3rd party evaluation system (which runs into incentive problems), it requires iterations of staffing and trial by fire to build even this ability to evaluate in house.