It takes time to unravel budget cuts that were shortsighted or based on political decisions.
I can remember in the early 80s after President Reagan was elected. Carter's cuts had decimated the military. And even though the Administration was throwing truckloads of money at the DoD, it still took a couple of years for the supply chain to get ramped up and for us to be able to get C-5 aircraft FMC rates above 75%. We were cannibalizing parts for engines and just about any other aircraft part one could think of. It was not uncommon to have an aircraft sitting on the line post-periodical inspection unable to complete all it's ops checks due to a shortage of parts.
Time will tell if this incident is catalyst for the DoD to really take a look at what's going on logistically and fix the problems.