We struggle to do this because in 90% of the games we play, teams set up to defend and to attempt hit us on the break. If the opposition scores they then just do away with the "hit them on the break" bit and defend with 9/10 defenders camped in an around their own box for the duration of the game.
Livarpool don't seem to face this tactic so much, their games are a lot more open and the opposition "have a go" more, and as a result their long ball tactics pay dividends.
You can't really argue with their results, but it's apples and oranges to a degree.