Leaders for less than 3 years ... that's not enough

In Kentucky, 46% of our school principals have been at their school for three years or less. 

These results from the TELL survey in Kentucky by the New Teacher center are fairly stunning. Alternatively, only 28% of our principals have been at their school for 7 years or more. 

Innovation takes time. As I have watched districts across Kentucky innovate as part of Next Gen, a ballpark range for an average innovation cycle from the initial leader learning to full school implementation of a concept is usually around 3 years. And, remember, that is to the initial implementation not to the mastery implementation ... that takes at least an additional two years. 

So, only about 1/2 the schools in Kentucky have a serious shot at mastery implementation of deeper learning innovations because without sustained leadership such innovations typically fall apart. Now, school-wide innovations can be led and sustained by someone other than the principal but that seems to happen only rarely.