Who plays where? The Defence.

This is a vexing question, which is probably not what anyone wants in a blog, but I propose to do so in three stages. This week the backline.

Typically the back consists of a keeper and four defenders in one of several configurations. My preferred arrangement is two central backs and two wing backs. All positions must work in harmony, and all need certain unique skill sets, as each has unique duties on the field.

The wing backs, left and right have need of certain physical assets in particular strength, speed and endurance. These players are required to defend the flanks, as well as prevent crosses. They are also critical components in the attack in carrying the ball down the wings and overloading the defence by adding width.

This is why they need to be fast and strong. Look at current Liverpool wing backs, Glen Johnson, Martin Kelly,  Danny Wilson and Fabio Aurelio, all strong, all willing to attack and defend. Play both ends of the pitch, willing to commit to attack and get back to defend even quicker.

The center backs are the defensive co-ordinators. They must be quick, fearless in their challenges and strong in the air. They need to control the center of the pitch, pushing the attackers wide and preventing penetrating runs and passes. Currently Carragher, and Skrtel carry the bulk of this job for Liverpool, but many others have contributed to the job as well.

The biggest job is stopping up the middle of the pitch and clearing the ball when dangerous situations arise. They are also invaluable for lengthening the pitch if the ball needs to be played back to switch the point of attack. A secondary role occurs when in the attacking third of the field, they can volley shots back at the net. This was common for Emlyn Hughes and for Sami Hyppia in their days at Anfield. Jamie Carragher is no slouch at this either.

So defenders, do it all. They must be patient in defence, quick to attack, cool under pressure, and an ability to see both the attacking and defending possibilities in a game, all at the same time. If you find a good one, she's worth her weight in gold!