Career as a coach
| Period | Team | Country | Position | |
|---|---|---|---|---|
| 05/2021 - 11/2023 |  | Ross County FC |  Scotland | Manager |
| 10/2017 - 02/2018 |  | Scotland | Scotland | Manager |
| 11/2014 - 04/2015 |  | Wigan Athletic |  England | Manager |
| 06/2011 - 12/2013 |  | Cardiff City |  Wales | Manager |
| 06/2009 - 06/2011 |  | Watford FC | England | Manager |
| 11/2008 - 06/2009 | | Watford FC | England | Ass. Coach |
| 11/2008 - 11/2008 | | Watford FC | England | Manager |
National teams managed
| Season | Team | Position | |
|---|---|---|---|
| Friendlies 2018 | | Scotland | Manager |
| Friendlies 2017 | | Scotland | Manager |
Career as a player
| Period | Team | Country | Position | # | |
|---|---|---|---|---|---|
| 07/2007 - 06/2008 | | Watford FC | England | Defence | 24 |
| 07/2006 - 06/2007 | | Watford FC | England | Defence | 4 |
| 08/2005 - 06/2006 | | Watford FC | England | Defence | |
| 09/2004 - 08/2005 |  | West Ham United | England | Defence | 21 |
| 07/2000 - 09/2004 |  | Norwich City | England | Defence | 4 |
| 09/1998 - 06/2000 | | Norwich City | England | Defence | 21 |
| 07/1993 - 09/1998 |  | Celtic FC | Scotland | Defence | |
| 07/1991 - 06/1993 |  | Queens Park Rangers | England | Defence | |
| 07/1989 - 06/1991 |  | Queen's Park FC U18 | Scotland | Defence |
Club matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Champions League Qual. | 1 | 1 | - | - | 90 | - | - | - | 1 | - | - | » All matches |
| Europa League | 2 | 1 | 1 | - | 67 | - | - | - | - | 1 | - | » All matches |
| Europa League Qual. | 2 | 2 | - | - | 180 | - | - | - | - | - | - | » All matches |
| Premier League | 14 | 13 | 1 | - | 1.227 | - | - | - | 3 | - | - | » All matches |
| Championship | 269 | 250 | 19 | 4 | 22.947 | 20 | - | - | 26 | 2 | 1 | » All matches |
| FA Cup | 15 | 15 | - | 3 | 1.341 | 2 | - | - | 2 | 1 | - | » All matches |
| League Cup | 12 | 10 | 2 | - | 1.015 | - | - | - | - | - | - | » All matches |
| Playoffs | 3 | 3 | - | - | 270 | - | - | - | - | - | - | » All matches |
| Premiership | 38 | 33 | 5 | 1 | 2.993 | 4 | - | - | 6 | - | 1 | » All matches |
| Total | 356 | 328 | 28 | 8 | 30.130 | 26 | - | - | 38 | 4 | 2 |
International matches
| Competition | Matches | Start | In | Out | Min. | Scores | 11m | Ass | Yellow | Yellow-Red | Red | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WC Qualifiers Europe | 1 | 1 | - | - | 90 | - | - | - | - | - | - | » All matches |
| Friendlies | 4 | 4 | - | 1 | 265 | - | - | - | - | - | - | » All matches |
| Total | 5 | 5 | - | 1 | 355 | - | - | - | - | - | - |