Yahoo News on Bad Bosses: Didn't Leadership Academy Get the Memo?

Yahoo News ran a story on bad bosses, "5 Signs of a Bad Boss." The article is directed towards bosses.
Don't bosses get it, that they will not get employees working at their optimum, that they will get massive staff bitterness, that they will get employees calling in sick, often? (Regarding the last point, those Educators-Shilling-for-the-Deformers, Educators4[sic]Excellence groused about teachers taking sick days off. If these were real teachers, i.e., teachers working full-time, they would have realized that the students burn the teachers out and that the administrators actually join the students in harassing the teachers. So, you wonder why teachers take days off as mental health days?)