According to the rumour mill, there could be a new name added to this list rather soon.
Mark Warburton's Glasgow Rangers side were humbled by the Hoops at Parkhead.
Former Celtic boss Tony Mowbray is now the bookies favourite to take over at Coventry City.
All the latest summer transfer news from League One...
The loan window for Football League clubs slammed shut at 5pm today, with some teams more active than others.