But if you lose the current war because you are too busy procurring for the next one......??
It is about balance, trying to do your best to give both "now" and the "future" the correct resources. The point some people are making, and how much you agree with them is entirely up to you, is that the war being fought "now" is not being given enough priority.
You can point out that part of the problem is the long lead times on procurement projects. You can disagree with the arguement about resources for the current conflicts, pointing to UOR projects, more UAVs, new Army vehicles offering better protection, 6 second hand Melins, etc. But some peoples personal experiences on the coal face in the Middle East make them believe the "now" is not being sufficently resourced.
Of course, to give sufficient resources to both present and future conflicts would require more money from the government, which we aren't going to get, so something will have to give somewhere. The question is what?: