Long balls can be very effective if they are played to the flanks. Played to the middle the opposing center half will get his head on the ball, or the striker will be pulled up for backing in. If a flick on is won, very rarely will there be anybody running on anticipating it so it runs through to the keeper. If played to the flanks, the full-backs usually aren't as competent at dealing with them as their central defenders are, so there is more chance they will put the ball into touch. With this the wide men need to be running on to the ball rather than being underneath it.
I thought last night was a really good match, both teams gave their all and had some good chances. Full credit to the referee as he let a lot of tough tackles go from both sides. It was good to see that when anybody went down at a little shoulder barge he waved them up and play on. Barkley had a good game, he wasn't afraid to put his foot in and was very unlucky not to score.