Mr Miliband's speech highlighted that one of the biggest factors in the different levels of pupil achievement was the difference in the quality ofteaching within schools.
But when Teacher Appreciation Week comes around then of course teachers and their representatives want to emphasize the fact that one of the many things that makes a difference is the quality ofteaching.
Petersen believes that while the concepts of coaching and teaching are inherently similar, there is an important difference that most leaders lose sight of.