Don't want to speak for Hindsight, but here's my take:
Most people think the Pentagon has one overarching mission: Provide for the security of the US on the world stage.
I'd argue, the Pentagon has two missions: 1.) Provide Security 2.) Provide Jobs
In addition to it's mission of providing security for the US of A, the military also has the mission of being one great big 'ol jobs program.
It's arguable which mission the Pentagon has more focus on at any one time. If you look at how the Pentagon spends money (inefficient, wasteful, etc), you'd think they're not getting their money's worth, assuming you think the military's only focus is providing security.
However, once you realize that the military's mission is also to be a jobs program, then it looks like the Pentagon is actually spending money in a pretty smart fashion.
The more wasteful and inefficient you are, the more jobs that are created.