POLL: Who Should Go at MSNBC?

Take the Rush Poll for who should resign at MSNBC in order for an African American show anchor to replace them. Al Sharpton called MSNBC "all white- all day and all night" following the Don Imus mess, and the news media is always telling us about equality, so... which white guy should go?

Chris Matthews?
or
Keith Olberman?
or
Tucker Carlson?

(I voted for Keith Olberman because Chris doesn't claim to do straight news without opinion and Tucker doesn't matter)