Yeah, budgets.....
I'm tending to take Secretary Mattis's word for it, when he states that uncertainty in budgets is the biggest problem facing the Defense establishment. It is entirely, completely, a counter-factual, but if the sequester had not occurred, and if certainty in appropriations and funding had been maintained even to only a modest extent, how much of this fifth-generation drag would be vortexing off the wingtips of the program, at least that's the question some inquiring minds want to know.