What are the four key positions on the White House staff?

To be Americans who love thier country, Hamburgers, junk food and potatoes. And to be FAT

Chief of Staff
Denis McDonough

Deputy Chiefs of Staff
Rob Nabors
Alyssa Mastromonaco

Counselor to the President
Pete Rouse

Senior Advisors
Valerie Jarrett
Dan Pfeiffer

(google)

And dont forget the humble janitors