[grantsrc]

Not quite sure what exactly you are getting at but let me try to attempt answering your question.

Last year, the NCAA changed their rules and mechanics regarding offensive substitutions. They wanted to reduce the number of late substitutions by the offense trying to catch the defense at a disadvantage.

When there is a substitution by A, the U is supposed to straddle the ball. That could be why he was around the ball after the ready for play. This allows for B to change their personnel to match A. If the play clock expires, it is a delay on A. Your example about the kicking team waiting to get on the field is a perfect example of this.

As for the discussions, who knows what was being said. Poor play/sportsmanship makes the jobs of the officials exponentially worse. It is amazing how much smoother a games goes when both teams are well-coached and well-behaved.

Hope that helps.