I agree with a lot of what you said apart from de bruyne/Oscar, van ginkel and essien to play against big sides. Surely lampard-Ramires would be best to play against big sides as they are experienced in big games and Ramires is a big game player no doubt. Also we would want the likes of de Bruyne Oscar etc against the sides who park the bus as they can split open the defence with their excellent through balls, a quality which Ramires doesn't posses. Ramires is best used in a counter attacking set up, which will probably be played against the big sides. Just my opinion I could be wrong