It is understandable a new manager will want to surround himself with his own allies, those he has worked with most closely at previous clubs, but at the very least Moyes could have waited a season to see if he could establish a working relationship with the existing staff, just to maintain a sense of familiarity. If it did not work and the staff did not fit the new vision, fair enough. However, it was inevitable questions were raised at the time of the backroom changes and even more so now given so much has gone wrong.