As parent of ex-student of G.T. College, Dr Chan is a perfect principal but he will leave from Sep 2020. I am afraid that the good school criteria will be gone soon as the newly promoted one is the one always accomplish Dr. Lee and as a parent, I can't see what he has done bright for the college. There's a few other assistant principals who worked longer in the role but can't get the chance as he did. He may have some "special" skill which superior than the others.
Hope the "brush shoes" culture won't be spread quickly or else good school will be destroyed very quickly. Ppl may say that every schools are the same, and yes, secondary section has already got this culture. Teachers turnaround rate are so high that students can't get quality education but went to outside tutors themselves. That's where good exam results come from.