Is your school something more than a system of rules, offenses and punishments? What is the vision that propels the mission of your Christian school? Are you content with behavior control and the dissemination of knowledge? Are you asking the law to do what only grace can accomplish? Rules restrain sin, rules expose sin, but rules will never deliver a child from sin.Unless I'm missing my guess, Tripp's answers will be just as precisely true.
If there is another author/teacher who more effectively combines exegesis of Scripture and the human heart than Paul Tripp, that person's name isn't coming to my mind. Instruments in the Redeemer's Hands and A Quest for More are prime examples.
Let me know what you think once you've heard it, or better yet if you already have. If this set shouldn't be a cornerstone in any Christian school administrator's staff development toolbox, it'll be useful to me to hear the reason why.