I understand staff may want greater movement between the schools for personal development which should always be available. How will this be balanced against what is best for the pupils of the schools?

In an academy it makes it easier for teachers to support each other across the group of schools by sharing, drawing on and learning from good practice, taking on increased responsibility for specialist subjects and acting as a coach. In a MAT, teachers can plot clearer career paths which will help to attract, retain and support the improvement of high quality teachers which ensure that this is in the best interest of pupils.