Yes but they haven't proved it under him. And that's the key. He's giving everyone a clean slate and a chance, I've no problem with that. If they're all wank and he's still picking them in 12 months time ahead of the world cup then we'll have a problem but it's his first squad, he has to be allowed to look at everyone. Getting the older guard in and making a decision on them quickly is a sound move to me.
Ignoring the fact hes a rag, Rashford has had a good month or so at Villa, who has had better that isn't involved? Grealish certainly hasn't and I can't think of anybody else. Branthwaite hasn't been close to evertons best outfield player, if you wanted an Everton defender it would be Tarkowski. Burn has been a solid player for a few seasons now, no issue with him getting his chance.