Kane, Dier, Vertonghen and Rose probably ahead on the pecking list. Nice to have so many people capable of leadership tbh.I think there are about 5 players who would have been ahead of KW as captain. Not sure where you're getting those ideas from? I'm a big fan of Walker have been since before he started getting regular games under Redknapp.
It's not magic, Pochettino is an excellent coach and has shown how he can transform players.