And it works the other way, too. Twice already this season Kelly has mentioned bad film on an opponent being a factor in preparation. When Stanford surprised the Irish by rushing three defenders and dropping eight in coverage, the Irish had no response. It was something they had not seen on film.
But Kelly is never better than when he gets a bead on his opponent, which is something to keep in mind when Notre Dame (2-3) takes on Pittsburgh (2-2) today at Notre Dame Stadium.
So take it for what it's worth that Kelly feels pretty good about the opportunity for quarterback Dayne Crist and the Irish offense to ''put it all together'' today against Pitt.
''I hope so,'' Kelly said after practice Thursday. ''I really think a lot of it is about the recognition from the quarterback. When he can recognize, then comes the right reaction and appropriate response.
''This is certainly a defense he is more familiar with. Hopefully we've been able to give im a good scouting report. He [Crist] had a good week of practice. He did some things he hasn't done on a Thursday. I'm very encouraged. We'll see what happens. ''