Gaia Thurston-Shaine wrote:
While it is not appropriate for me (after 4-5 years) to judge the technical growth of my teacher (with 23 years of experience), I can tell when he is truly engaged in improving both his own aikido and his teaching ability/style. So while I can't neccessarily judge WHAT progress he is making I can clearly tell that he progressing. It shows in the way he runs class and in new techniques and ideas he shares with us.
I guess you could say that if they still inspire their students than they are progressing.
We've all known teachers (Budo or otherwise) where the question becomes - why do they bother. Avoid these people because they will drain what joy you have in our little thing.