Deptrai - I think you are missing the point, apart from being high handed and more than a little conceited. The question of the suitability of the Pilots is not at issue. Its essentially down to their training and relevant experience, I happen to know a couple of Test Pilots whom are also engineers and they had to eat a lot of
in working their way through the various flying programs and into Empire Test Pilot school. The skills and Piloting knowledge gained was significant.
As you say the NTSB should be looking into the adequacy of their Training, SOPs and standards discipline etc. but its good to discuss the issues on here.