Wayne Rooney may have lost five out of eight Championship games in charge of Birmingham but there's one area where he beats all great coaches in the history of the game.
The United legend is the richest boss in football, according to Sport Bible.
Here are football managers with the biggest net worth, ranked from bottom to top:
10. Arsene Wenger (last job - Arsenal) - £38m
9. Jurgen Klopp (Liverpool) - £39m
8. Carlo Ancelotti (Real Madrid) - £40m
7. Sir Alex Ferguson (last job - Manchester United) - £56m
6. Steven Gerrard (Al-Ettifaq) - £71m
5. Zinedine Zidane (last job - Real Madrid) - £99m
4. Pep Guardiola (Manchester City) - £100m
3. Jose Mourinho (AS Roma) - £100m
2. Diego Simeone (Atletico Madrid) - £102m
1. Wayne Rooney (Birmingham City) - £125m
Apparently, Rooney's net worth is this big thanks to all the money he earned in his playing days and, more importantly, in his time at the Major League Soccer.