Visual supervision is a joke for development workers. Visual supervision is for prisoners.
The purpose of a team is not goal attainment but goal alignment.
The manager's function is not to make people work, but to make it possible for people to work.
First law of Bad Management: If something isn't working, do more of it.
If nothing is declared unchangeable, then the organization will resist all change.
Training is practice doing a new task much more slowly than an expert would do it.