The stories about Parker falling out with certain individuals are rumours of course but I've heard too much about it from too many people, too consistently over too long a period, for it not to be true. It's also come from several posters I believe generally are quite close to what's going on, although I won't name them. Also with a couple like Mitrovic and Hector I'd say it's obvious - for them to be fit but not getting picked ahead of Cavaleiro and MLM respectively shows something is awry.