[5] Dack was caretaker manager at Sutton United in 2008 prior to the permanent appointment of Paul Doswell.
He was offered the post at the end of the season but turned it down and decided to work instead as assistant manager at Welling United.
[15] In June 2015, Dack was appointed assistant manager to Mark Yates at previous club Crawley Town.
In January 2017, Dack was appointed assistant manager to Andy Woodman at National League South side Whitehawk,[16] and succeeded him in the post before the start of the 2017–18 season.
[17] On 28 August 2017 with Whitehawk at the bottom of the league after picking up only one point from the first seven games of the 2017–2018 season, Dack resigned.