9. When Cuban Vs. Nellie Really Started (2003)

DALLAS - MARCH 17: Owner Mark Cuban of the Dallas Mavericks listens as head coach Don Nelson talks to his assistant coaches during the game against the Portland Trail...

LOS ANGELES - DECEMBER 5: Head coach Don Nelson and Owner Mark Cuban of the Dallas Mavericks watch from the sidelines during the NBA game against the Los...

Nelson claims roughly five million reasons for being upset with Cuban

Donnie Nelson

The younger Nelson was blasted when Dirk Nowitzki and Steve Nash struggled initially and then got shortchanged on the credit when Nowitzki and Nash became All-Stars. But Mark Cuban has always valued...

Avery Johnson

...is surprised. Don Nelson let Johnson run several players-only practices when he was still active and it didn't take long from there for the Lil' General to convince Mark Cuban that his leadership...

Mark Cuban and Don Nelson failed to lure a big man to Big D