In the meantime, here's a look at how Sunderland boss Phil Parkinson's career win percentage stacks up against every other manager in League One, ranked from best to worst record.
1. Micky Mellon - Tranmere Rovers
Average career win record: 47.3%. Best record: 51.6% (Fleetwood Town). Worst record: 42.4% (Shrewsbury Town) Photo: Lewis Storey
2. Kenny Jackett - Portsmouth
Average career win record: 44.8%. Best record: 52.73% (Portsmouth). Worst record: 36.4% (Watford) Photo: Catherine Ivill
3. Darren Moore - Doncaster Rovers
Average career win record: 44.4%. Best record: 47.9% (West Bromwich Albion). Worst record: 40.5% (Doncaster Rovers) Photo: Lewis Storey
4. Steve Evans - Gillingham
Average career win record: 42.9%. Best record: 49.5% (Boston United first spell). Worst record: 31.5% (Boston United second spell) Photo: Julian Finney
1 / 6