Hear, hear. The start of the lesson is determined by the subject matter, its disciplinary connection with the end of the previous lesson, the types of anticipation the texture of the content flow demands at this stage. MWB or not would be an absurd generic imposition
Not English teacher, but I'm involved in curr reform in NI & we are seeking to apply pedagogical principles in a strong subject sensitive manner.
English should not be subjected to a one-size-fits-all appraoch to lesson planning.
MWB retrieval should not be the default starter.