No. 10: A roof is a man-made thing.This may cut a little close to the bone, since the geography,but I think we all were there and we'll all remember where we were.But in January 3, 1993 it was the NFL playoffs, and your Houston Oilers were playing the Buffalo Bills.The Bills won, but they didn't really beat the Oilers.The Oilers lost that game; they beat themselves. You all remember that, huh?Why? Why'd they beat themselves, or how?Was it because at halftime they put a ceiling, a roof, a limit on their belief in themselves, a.k.a the prevent defense?Or maybe they started thinking about the next opponent in the playoffs at halftime, I mean, they were up.Then they came out, played on their heels, lost the mental edge the entire second half. And voila: they lost.In a mere two quarters, defensive coordinator Jim Eddy went from being called the defensive coordinator of the yearand the man first in line to be a head coach next year, to a man without a job in the NFL.