Right now if a government agency wants to do something like make a webform where you can apply for a passport, they have zero web developers on staff who can do it. Instead they must pay a team of non-technical officials and lawyers to make and adjudicate an RFP. Then pay a contracting firm to put a developer behind a government computer to do the actual work. Putting this contractor in a seat can easily cost the taxpayer $500k a year despite the contractor only receiving $130k of that money. The rest goes to the HR department, IT Department, C-Suite, lawyers, lobbyists, and shareholders at the contracting firm. The government has their own HR/Lawyers/IT too, but the contractor can't use those so the tax payer ends up double-paying overhead and missing out on economies of scale on every contract.
This is one of the many reasons government websites are always $50 million dollar boondoggles that an intern could have done better. The government ends up spending millions of dollars feeding leeching middle-men before they can hand that money to a mediocre dev deep in the bowels of Accenture's cheapest subcontractor.
If an agency just could hire a few strong web developers directly and then assign them to whatever task is needed during a particular sprint, we'd see a massive reduction in cost and increase in the quality of engineers working on our country's most important work. But most agencies are literally not allowed to spend more than $120k on an in-house engineer, while no one bats an eye on them spending 5 times that on an Accenture contract placement.