 On 9 December 2013 it was announced that Gannon would become the new manager of Northern Premier League Division One North side Northwich Victoria. He replaced Lee Ashcroft, who resigned as manager and became director of football after picking up a ten match ban for sexist abuse. The "Vics" ended the 2013 – 14 season in ninth place. They reached the play-offs in the 2014 – 15 campaign, losing to Bamber Bridge at the semi-final stage. He took the club on a successful FA Cup run in the 2015 – 16 campaign, leaving them as the lowest rank team in the competition when they were knocked out by League Two side Northampton Town in the Second Round. Northwich had led 2 – 0 with eight minutes to play before a late comeback from Northampton.
