The turnaround in Liverpool’s form since the beginning of December has been remarkable. After 15 games, they lay ninth in the table with 21 points; since then they have climbed to sixth, taking 24 points from 11 games. In those first 15 games they scored and conceded 1.27 goals per game; in the 11 since they’ve scored 1.73 and conceded 0.91. Brendan Rodgers, quite rightly, has been hailed for the way he shifted formation, adapting to a highly unusual 3-4-2-1 - or 3-4-3 - formation.