This is more in the Church Leader department than the preaching department, perhaps. But it could pertain to reviewing style and substance of our sermons. (Sunday afternoon second-guessing).
From the current issue of Church Leaders Intelligence Report:
Spiritual leaders’ decision-making process is undermined by nagging doubts about their choices. If things don’t go the way they anticipated, the problem is further compounded by self-blame. Depending on personality and cognitive style, leaders need differing amounts of information and lead times in order to make decisions. But once decisions are made, the best leaders practice little second-guessing. "Would I have made the same decision with the same information I had at the time?" is a good question for leaders to ask themselves when tempted to second-guess. If the answer is yes, then the leader can move on. If the answer is no, then the issue is to find a better way to make decisions.
Adapted from Practicing Greatness: Seven Disciplines of Extraordinary Spiritual Leaders by Reggie McNeal, Jossey-Bass)