The Scot left the Stadium of Light a year ago today, following a 2-0 defeat at the hands of Lincoln City, just over a year after taking the reigns.
Here, we take a look back at the signings made under his watch and evaluate whether they were a success or not:
17. Kaz Sterling
Despite his goal at Accrington, he's one to add to a long list of forgettable Sunderland loanees. VERDICT: MISS Photo: FRANK REID
18. Conor McLaughlin
Has looked steady enough in his few outings for Sunderland, and it looks to be a big season ahead for the Northern Irish international. VERDICT: THE JURY IS OUT Photo: FRANK REID
19. Lee Burge
While he spent much of last season playing second fiddle to Jon McLaughlin, Burge showed enough to suggest that he could be a reliable number one for the Black Cats this term. Has impressed in the early weeks of this campaign. VERDICT: HIT Photo: FRANK REID
20. Jordan Willis
An inspired signing, and a player who may well be attracting admirers from elsewhere. VERDICT: HIT Photo: Frank Reid