Even in a 4-4-2 last season BAE and Corluka overlapped Bale and Lennon running as wing backs at times, several other sides do this in a 4-4-2 this is a basic move in the formation, as RB moves up LB stays back vice versa, or just the two CB's, so I am not sure you have hit the nail on the head there, that being said we trialed 4-2-3-1 in pre-season, and are expected to adopt in CL away games if we make it past Young Boys, and tough away EPL games, not sure if we will use it against Young Boys although, mixing with the formation from something that works great in such a huge game for us could be a big gamble. We need more games playing it testing it out working out the kinks, and I don't think this game is the best time to start. But this formation is definitely one we need to work on and employ in games that we are struggling against noted ably tougher opposition, and Remy is a player that would work best as the lone striker, as he is big but pacey enough to dribble through and out pace his defenders Crouch has the ability to hold the ball in this role and lay off, but he hasn't got the pace on the ball or the dribbling ability.