Elon Musk will be in charge of the effort by Trump to cut government waste.
Problem is, most government workers actually do something necessary. The last time a government seriously slashed government workers, under Clinton, all that happened is that contractors were hired to do the work: and contractors cost more.
Besides, if you’re going to actually go after waste, you need to hit the Department of Defense and allow things like Medicare negotiating drug prices.
Government is a profit center for private business, as Musk, whose businesses (especially SpaceX) run on subsidies and government contracts well knows.
A few genuine “savings” may be made by slashing enforcement of things like environmental laws, but they will be paid for in different ways.