Why Ronny Deila’s 4-2-3-1 Is The Way Forward for Celtic News Why Ronny Deila’s 4-2-3-1 Is The Way Forward for Celtic R W 13th October 2015 9 When Ronny Deila joined Celtic in the summer of 2014, a new style of football was born... Read More Read more about Why Ronny Deila’s 4-2-3-1 Is The Way Forward for Celtic