Well, until you remove useless layers of procurement people (i.e., an agency I work with puts products through 3-4 layers of "market research" to get to compliance, all the while the end users are in desperate need of the products and end up doing expensive split purchases on purchase cards to avoid the months of delay by pencil pushing dweebs) you won't get anywhere.
If I was in DOGE, I would start by eliminating most of those procurement offices that extend compliance requirements well beyond what the law actually requires and begin cutting through where OIGs, the GAO, etc. have deliberately (politically) misinterpreted the FAR to preserve useless jobs within every agency.