Great Managers Are From Earth: Six Down-to-Earth Rules for New Managers

I get whacko when I see bad or misguided managers in action. It seems that being a good manager should be easier than being a bad manager.
But, managers face daunting challenges on a daily basis:
"Where do these negative attitudes come from? You name it. Marge thought that she had been unfairly excluded from a supervisory position. Bill was tired of working nights and knew that he was much more capable than his day shift counterpart. Dorothy thought that she was never given adequate training. The list is endless.
"Where did Rick's negative attitude come from? Rick was ... well ... Rick was just an ass. No, just kidding. That was a little management humor. Rick was actually an extremely dedicated, very hard-working employee. He just annoyed the hell out of everybody."
From Chapter Five: Firing Someone is Almost Never the Solution