The problem is two fold, the first is that any change in process or procedure has to be approved by a committee that probably has nothing to do with IT at all; and the second is that the DoD is full of higher ranking officers that if you have a 3 day turn around for a repair -- for example, they will threaten your very existence unless they are not done immediately.
The only solution I can think off is that the IT has to be removed from the DoD, and assigned its own budget and director.
There's also mastodon and its part of the fediverse