A Maxi Rodriguez hat-trick inspired Liverpool to their biggest win of the season and further prove, if anyone was still in doubt, that Kenny Dalglish is the man to lead the club forward.

The little Argentinian was not necessarily brilliant but just put himself in the right places to capitalise on some impressive team play by a side brimming with the confidence instilled by the 60-year-old Scot.

There were positives all over the field with Dirk Kuyt scoring his seventh goal in six league matches while even substitute Joe Cole, who has endured a disappointing maiden season, got among the goals with a late deflected effort.

Five goals and all this achieved without £35million record signing Andy Carroll, who was unavailable due to an injury sustained in last Sunday's draw at Arsenal which allowed Kuyt to move back up front.

Adaptability was the name of the game as the Reds adopted a midfield diamond formation to get the best out of Raul Meireles' attacking intent.

Crucial to making it work, however, were the superb Lucas Leiva at its base and Rodriguez and Jay Spearing.

Rodriguez is becoming something of a lucky charm for the side he joined in January 2010 as although his goals are few and far between - just seven in 49 matches - they have all coincided with victories.

He is more suited to the midfield set-up which Kenny Dalglish went with at the start but it also brought the best out of Spearing, who had a hand in the opening goal - although not as much as Foster in the seventh minute.

Kuyt's lay-off saw the 22-year-old midfielder fire in a swerving shot which the Birmingham goalkeeper spilled into the path of Rodriguez who made no mistake from close range for his first goal since December 3.

Birmingham briefly responded, without really threatening, before they were caught by a classic Liverpool counter-attack in the 23rd minute.

Jose Reina intentionally picked out Meireles just over the halfway line and he flicked on into the path of Luis Suarez who did well to hold off the challenge of Martin Jiranek.

Foster may have been at fault for the first but he saved well from the Uruguay international and again from Kuyt's follow-up but he could do nothing to prevent the Holland international getting up to slot home the rebound.