.
Letterman is the boss
He controls who is on his staff
He controls who is hired or fired
From now on Letterman may be the butt of other hosts jokes -
[With kids he is hiring girlfriends for his staffers?]
Yeah I know he is the boss.
Your previous remark can be taken in two different ways. When I read it I thought you meant he was ‘hiring girlfriends for OTHER staff’.