Kirk has the best punishment for penalties, dropped passes, etc. He jots the name down on a piece of paper and that player knows they are in for it at the net practice. Using that psychology for his players is so much more motivating for them than yelling their ear off during the game on national TV and having the player thinking "Man, Coach is a dick!".
Like when Daniels for the helmet to helmet penalty on TTU's QB, Kirk writes the name down, probably gives him some line like "Keep up the energy" or something. And then come Sunday or Monday, he deals with it professionally. This is probably my favorite aspect of Kirk.