So where do we go from here?
The trouble is that, while in some schools senior staff are only too delighted to be able to call on their expertise, elsewhere they are regarded as a threat. In some less collegiate staffrooms, the prevailing attitude is one of hostility to colleagues who go the extra mile. And so, some chartered teachers behave like islands because they feel isolated - and that, in turn, means the potential benefits of collaboration are lost.
Robert Brown, the Deputy Education Minister, is right to suggest that the chartered teacher grade will evolve. The teacher unions will be watching closely, however, to ensure that chartered teachers are not forced into the very management routes they were promised they could avoid. There seemed to be some support for this at last week's national conference (page one) when a call was made for all headteachers to have been chartered teachers.
Another cloud beckons on the horizon. If chartered teachers, based in their classrooms, are earning more than some principal teachers and primary depute heads, will this act as a disincentive for the next cohort of potential middle managers? By creating a regiment of crack foot-soldiers, will we be threatening the existence of the next generation of the officer class?