I have two sons with neurologic struggles that I work with every day and one of them is that it is very hard or difficult for him to stay on task when not interested.  yelling and anger do not work.

I have learned that many qualities I have already been doing in class while conducting myself as an instructor.  But there are many more that I am currently not doing in class that could improve my focus to my students.

As a leader in whatever position you are in, you want to act like you are the subject matter expert.  But that is not always the case, you must remain humble in your knowledge and attitude toward what you are trying to accomplish as a leader.