Worst NBA coach out of the playoff teams?

[Reload]

Some obvious candidates here. Who would you say it is?

Cleveland - Mike Brown
Orlando - Stan Van Gundy
Atlanta - Mike Woodson
Boston - Doc Rivers
Miami - Eric Spoelstra
Milwaukee - Scott Skiles
Charlotte - Larry Brown
Chicago - Vinny Del Negro

Lakers - Phil Jackson
Dallas - Rick Carlisle
Phoenix - Alvin Gentry
Denver - George Karl
Utah - Jerry Sloan
Portland - Nate McMillan
San Antonio - Gregg Popovich
Okalhoma City - Scott Brooks