What would you fix in the series about dumbledore, hermione, and mcGonagall. I like their characters but I feel like one of them got too perfect in book 4 in some way.

I feel like we should have known more about dumbledore some how and some people should have mistrusted his motives. With mcGonagall, I feel like she was doing the same as Snape only when it came to giving stuff to the Star, doing stuff that would normally be suspicious, and other stuff.