Technically, the NCAA doesn't use the Pairwise at all. The Pairwise simply "mimics" the method that the NCAA uses. It's a preditor of the teams in the tournament.
Then again, for all we know they DO use it, but officially it's just a prediction tool.
On another note, Barry Melrose just did his best Sid Hartman impression when he mentioned "my good friend Dane Jackson...".
(For those who don't know, Sid is always mentioning "my good friend ______". Everybody seems to be his good friend, or his "close, personal" friend.)