What is the key to winning this year's NCAA Tournament office pool? 

Who knows? No one has ever been documented to have predicted a perfect NCAA Tournament bracket, and the odds are about 1 in 9 quintillion, according to www.thespun.com.

But that does not mean it's impossible to show good etiquette when deciding how to enter your NCAA pool this year. Watch the video below to see former NBA stars Charles Barkley, Reggie Miller, Grant Hill and other experts weigh in on the etiquette of March Madness.