I’ve seen this adage in multiple formats attributed to many different innovators, Henry Ford said that the Motor Car was not the result of the continuous refinement of the horse and you can imagine a whole range of industry appropriate adages.
In education we sometimes appear very conservative about the pace and direction in which we move learning forward. There have been false dawns promised with new technologies and hacked neuroscience insights which have been totally misinterpreted, but the pressures for change are evolving at an increased pace.
One thing is for certain, ‘we cannot keep doing the same thing and expecting a different result’ as I’ve also seen attributed to many intellectual giants.
You need to be reflective in your practice and systematic in developing processes which capture the best of what your teaching staff already do whilst jettisoning those attitudes, behaviours and practices which do not impact on student learning.