USPS grows workforce while mail volume crashes 34 percent top bosses rake in over 300k each.

First class mail dropped sharply since 2014.
Career staff count rose 9 percent in same time.
Top five leaders listed make 312k to 341k yearly.
Postmaster General Louis DeJoy made 341k.
Deputy and chiefs around 312k to 327k.
USPS lost billions last year.
Volume down one third but headcount up.
Executives get high pay while service struggles.