I've worked with architecture astronauts before. We were a bootstrapped startup, and the need to use bleeding edge tech (our product was hardly rocket science)

I've worked with architecture astronauts before. We were a bootstrapped startup, and the need to use bleeding edge tech (our product was hardly rocket science) reinvent the wheel (hey, look at this - I spent a week and created my own grid control!) and a general need to overengineer seemed to blind the astronauts from the fact that if we didn't have anything to sell, we were going to run out of money in a matter of one or two months. We were "using" agile, and the lead engineer's approach to test cases was "well, if the function failed the test, let's just change the test to make it pass". Sheesh. Needless to say, the company struggled to meet payroll for an extended period time since we couldn't release anything to generate revenue.