it wasn't an angry reply.
It may have been the case under MM but under SM he's played the system at u23 level as well its one he knows and is comfortable with.
Listen to his interviews, he defends it, I think it's his way of playing.
And by my maths, he'd be better off playing 2cb with 4 fit senior ones available..playing 3 leaves 1 spare in case of injury..surely better to play 2 and have 2 as cover. Situation doesn't change with the wide defenders as we have 3 regardless to fit 2 spots..in either formation.
I like maths.