A central component is that the playing and recruitment philosophy should be determined by the sporting director, which prevents the first-team squad from being torn up every time a coach is appointed.
"The structure allows you to build a bigger picture," says Ashworth, who left Albion this year to become director of elite development at the Football Association. "We went through a cycle of two or three head coaches and what we couldn't have is a whole change of player recruitment philosophy, because it's extremely costly and time consuming. So in the interview process for a head coach, it would be: 'This is our philosophy, these are the profiles of our players, this is how we recruit, are you happy to buy into that?'"