Growing up is rarely linear. We all start and stop, learn and do things we know better than to do again until it finally sinks in, whatever it is. It’s just human nature.
That’s even more complicated in a group structure and wildly more so when the group has to compete against other groups. Then you have to deal with harmonizing a heirarchy and individual egos and getting everyone working towards a common goal.
It’s not an easy thing to do. It does seem though that Duke has made a lot of progress since the last time it was in New York.