He usually drops into the channel near their right back and thus allows Arfield to cut in, which is where he's so effective for us. We play 4-4-2 but it's almost 4-2-2-2 at times.
we play 4-4-2, as mentioned above you need to have a good exit plan when you get the ball back, ours is to hit Vokes (who drops deep) or Gray (sits in the channel). Both forwards split to get away from the crowded centre. This is where we get the hoofball tag from, though it's perhaps a bit...
I imagine that there are a number of ways, firstly go wide as there won't be the space through the centre. Secondly move it quickly, the forwards need to look to receive down the wings and channels.
With good passing and tempo you can negate the extra man though you need to be well disciplined...