It's a good principle that when people don't want to tell you when they will get something finished, or how much it will cost, it is not because they are worried that the good news will pitch you into a paroxysm of ecstasy.
"No More Time: We need an F-35 IOC date and debate," Aviation Week and Space Technology, January 28. 2103, pp. 12
This is a core issue when thinking of deploying agile software development in the absence of an overarching set of needed capabilities, a master plan for delivering those capabilities, and some form of measuring actual progress to that plan.
So when we are spending other peoples money, we need to make some attempt to do it on time and on specification.
