The method has already proven successful in the Spanish division with Barcelona in the past proving just how important it is to provide some sort of continuity in a football club.
Pep Guardiola, as a player, made over 300 appearances for Barcelona's first-team and once he had retired playing, he was appointed the manager of Barcelona B.
The appointment made sense because he knew the club and the academy well, having been a graduate at Barca himself, and he made a flying start. A year later, after Rijkaard had left the club, he was appointed the Barcelona's first-team manager which at the time, seemed like a huge gamble on their part.
Nevertheless, he went on to make history at Barcelona and the sense of nostalgia has driven two of the last three appointments since.
Tito Vilanova, assistant to Guardiola, took over as manager and went on to win the league the season later, despite a terrible illness that kept him from the games for large parts of the season. Gerardo Martino, who had no past connection, was fired a year into the job and replaced with yet another manager with prior connections with the club, Luis Enrique.
It's not only Barcelona either, Zinedine Zidane's rapid progression through their coaching network has arguably played a huge part in their impressive Champions League campaign. Nevertheless, the method is largely untested in England, especially at the big Premier League clubs. Therefore, Ryan Giggs' role at United could come under the microscope, especially from Chelsea owner Roman Abramovich.
After accepting a one-year extension at the club, it looks likely John Terry will retire in a Chelsea shirt at the end of the season. A coaching role at Chelsea seems almost like a foregone conclusion, but dependent on which 'role' could depend on Giggs' success at United.
A good year for United, especially one where Giggs earns the plaudits for his coaching, could lead to Abramovich planning something similar for John Terry. Which considering the success he has had during his 10-years as Chelsea captain, at the very least deserves contemplating.
A good example set by Giggs may open the door for Terry; However, another United flop could raise some doubts over it's success in England.