Gregory has been in charge since September of last year after coming in to replace Gary Waddock. They were never able to find any sort of form and only a run of four wins in five games during April pulled them away from the bottom of the league.
The club has recently been taken over and there's money to be spent in January. It was always thought they might look to replace Gregory and there was much speculation a week last Saturday when Gianluca Vialli turned up in the directors' box.
Whether Vialli will be the new man in charge remains to be seen. For now Gregory's assistant Mick Harford has taken on the role of caretaker manager and he'll be in charge for their game this Wednesday at Layer Road against Colchester, the club he left in the summer to work for Gregory at QPR.