having been at a small company that swore about manager tools all day long and actively recommended its staff to look into it to grasp some of the concepts and their approaches to things, it is equally as dreadful as any other resource out there. there are more than one way to do things and there are more than one different type of people that you'll have to manage. the reality is that it is a tough job that requires a lot of self awareness and a deep understanding of the risk of management drawing power hunger to really start to grasp how to leverage those tools to be effective.