Agree about BPF. Re. the coaching, perhaps Felix is just not listening, or thinks he knows better! If our other 'keepers are positioning correctly, then that suggests that the coach is ok. Think the problem in this case is a 'keeper who's been brainwashed in the continental way of 'keeping, and on joining us has struggled with unexpected demands on him. I often liken Felix to de Gea, and don't think I'm far wrong. He came good, didn't he? Sadly.
I think the main difference between the two (with the exception one is world class) De Gea bulked up in the gym, he knew what he had to do to improve as the rest was all there. He used at least used to come for the ball but just got out-muscled. Felix on the other hand never leaves his line to claim a cross (or for one-on-one for that matter) and has the heart of a kitten.