Teaching is a passionate profession.
Blame and betrayal are the emotional enemies of improvement.
When creativity is the goal, schools must have their own platforms to network and innovate.
Singapore gives 10% "white space" time to all of its teachers to come up with their own innovations outside of the official curriculum. This encourages teachers to turn to their colleagues for inspiration and ideas.
Schools cannot shut their gates and leave the outside world on the doorstep.
Physically, teachers are often alone in their own classrooms with no other adults for company. Psychologically, they never are.