> Mr. Musk has told Mr. Trump that the designs for the new Air Force Ones have been over-engineered with unnecessary features that have slowed the production, the people familiar said.

> Both Mr. Musk and Boeing have privately advocated removing the top-level security clearance requirements for at least some of the people involved.

> Currently, nearly everyone who works on the project requires a high-level security clearance called Yankee White, which requires a level of vetting equal to what military personnel must undergo if they are to interact with the president or the vice president. That includes Boeing employees and contractors, from mechanics to the electricians, even those who do not work on sophisticated systems

[...]

> It was Mr. Trump who negotiated the original contract with Boeing, an agreement that included extensive demands for specialized security and communications equipment, some of which Mr. Trump’s team is now talking about scaling back.

> Mr. Trump’s fixed-price contract also gave the Air Force less ability to make quick changes in the project as it encountered problems.

These are all government requirements. Why is Boeing taking the heat for these?

They should relax safety standards for the plane to speed up delivery. And don't fill full tank of gas, just barely enough to make it to the destination, maybe even less, to save time and deliver faster.