Well yes I agree with Martinez. Those attributes to tend to grow over time, Paul Scholes was one of the best I have seen with them and he developed them as he grew older (as a young second striker he didn't have them so much). However most players like your Wilshires, Ozils, Osmans display them from a younger age and they get developed over time.
The lack of what could be labelled mental flexibility is at present what prevents Ross being an absolute worldbeater (or potential to be) like say a Rooney had. Whatever position Rooney is played in, he is able to adapt. That to me is the main difference. It's not a biggie and he can still be a very good player, but as you've said he needs to be allowed to play to his strengths next season. I think Martinez has probably expected a bit much from him.
It has taken a manager like Martinez for me (and others) I think to really appreciate the ability of Osman. At times he was a liability under Moyes but I am starting to wonder how much of that was his fault, or how much of it was down to Moyes expecting him to play like Kevin Kilbane up and down on the right wing. You can see Martinez plays to Osman's strengths. It's a real shame Martinez has only got to work with him at the end of his career, as I doubt very much he'd had spent a decade playing right wing in a rigid 4-5-1 had he been.
As regards Liverpool, yes I agree. Can is a class act, and has a lot of similar attributes to Stones (hence why I left him our of the earlier criticism of their defence). Outside of Moreno they don't have a player who can play either fullback role. I could easily see Oviedo and Garbutt being able to play left full back.
You are susceptible down the flanks in that system, but we are already susceptible down the flanks! I am in favour of playing Barkley deeper, but there is a legitimate question of protection behind him. He has shown he can "run the game" in a way very few others can in English football. But last seasons derby we were flying and all out attack. Against QPR he was superb too, but that was against a side who had lost every away game that season. The big question is, can he run the game at Spurs away? If we don't go to 3 at the back I wonder if Martinez will use him in some more challenging games in a midfield 3 alongside Besic and McCarthy.
IMO that is why Ross is not setting the world alight at the moment, in a number 10 role, he does have the nous to play 'intelligently'. That doesn't mean he can't develop 'in game' intelligence with experience but to gain experience he needs game time. 'Mistakes' and all. He needs to play and also needs to reflect on his game alongside Martinez.
I think we should play him in a midfield 3 with McCarthy holding and Ross on one side and Besic on the other. But at the moment he loses the ball too much and that can make him a bit of a liability playing nearer the defence.
