Don't know if it's been mentioned but after watching a replay it's quite clear that the thing that sparked us in the 70th minute had little to do with the footballing presence of Vinny Lia and more to do with his actual physical presence.
There was a tactical change when Lia came which he was shouting and demonstrating with his hands (probably towards Mikey and Roly) before he entered the pitch.
Vinny slotted in beside Albert which pushed Roly up and essentially gave our boys up top a license for all out attack. Roly clearly played with a lot more attacking intent resulting in 3 assists and Burnsy and Krish played a lot higher. Lia probably had very little involvement in any of the goals but by him simply being in that Defensive midfield role it gave our attack the ability to play higher and take chances.