The problems are many and varied max ,I doubt even one of your legendary to do lists would solve the problems ,from red tape ,health and safety ,staff shortages ,classroom sizes ,local and national government interference ,abuse from both children and parents ,working long (unpaid )hours etc etc...If teaching is your vocation and you are hard working and conscientious ,then you are up against it ,and in my own very humble opinion it's a mistake to treat the people who educate our children this way .