[MrEfficiency]

This is literally the problem.

Instead of having a department make software, they are supported from a vastly superior group of developers that work temporarily with that department.

Maybe its too much to ask, but shouldnt the company providing the software also employ the talent that is used to make the software?

[dragonwriter]

At least part of the original idea for those entities was to serve as a cadre to improve competence government wide.

Having some experience with why government lacks organizational development competence (TLDR; short-sighted management with the wrong goals), I don't think they can do that—they literally are addressing the wrong problem—but the idea wasn't to be a silo of technical skill.