Might have a slight dis disagreement, on a couple of points .
Many yrs back, i taught a round dance group of teachers. they were working primarily at an advanced level .
it soon became apparent, that they had neglected ( not their fault ) most of the technical aspects. However-- they were very willing to revise and implement many aspects .
The problems arise from the way the teachers receive their " calls "-- It usually comes as alist of steps, lacking in description, essentially , from which they have to teach their students. For some obvious reasons ( forget alignments )they adapted things to suit their purpose .