Mark Robinson's second team also enjoyed success by winning the Mid Ulster Reserve League Division 3 with a thrilling final day climax.
Starting the season strong reaching the 3rd round of the Irish Cup, falling to Moyola Park, as well as sitting top of the table.
Upon the return to Intermediate 'A' football, The Vale lost coach Darragh Peden who was instrumental in the title winning season, who was replaced by ex-Crusaders player Sid Burrows.
As for the 2019–2020 season, The Vale was saved by the bell more or less with the team sat rock bottom when the league was suspended due to the COVID-19 pandemic.
Millar brought with him Robin Carson as his assistant as well as Matthew Hollis, Aaron Dowey and club legend Gareth Thornbury joining the coaching staff.
With training and matches interrupted Millar left his post after only 9 games in charge with the club promoting his assistant Robin Carson to manager.
Carson was dealt a bad hand for his first job and had a mountain to climb but even with the hard work of the staff and players the team found themselves heading back down to the second tier after finishing 15th.