The Blues ended their campaign with a 4-1 defeat to Sheffield Wednesday, highlighting the gap their head coach must bridge to the top-six.
But who will stand in their way of getting to the Championship next term?
Here’s the 19 confirmed teams to play in League One next season.
1. Accrington
2021-22 finish: 12th (League One) Photo: Nigel Keene
2. Barnsley
Relegated from the Championship.
Picture: George Wood/Getty Images Photo: George Wood
3. Bolton
2021-22 finish: 9th (League One) Photo: Charlotte Tattersall
4. Burton
2021-22 finish: 16th (League One) Photo: Alex Davidson