Do you realize how ignorant it makes you sound and, how suspect anything you say is when you do not even know that the USPS has not received a single penny of Taxpayer dollars for operations since 1986? That's 26 years.
USPS, through those years was never permitted to retain any profit that it might have made, and there were Billions of dollars that were skimmed from the USPS for Congress to waste.
You say that the USPS needs to innovate? Would you be surprised to know the USPS offered a service back in the 80's, called E-Com, as a precursor to email business communication? Would it surprise you to know that the USPS launched a very short lived bill paying service in the '90s?
Congress bowed to pressure and killed them off.