Fair enough.
And, moreover, United's owners will be able to make the argument that they have already gone down the route of recruiting a talented (and much loved) former player as manager (with the appointment of OGS) and have no intention of revisiting those criteria (not least, because the experiment wasn't terribly successful) with this latest appointment.
The one thing that cannot be questioned with regards to OGS is with regards to his time when as interim manager. His 19 games in charge produced the best results of any United manager the club has ever had and that is a fact.
19 games, 14 wins, 2 draws, 3 loses
1) The only manager to win first 6 league games in a row. He beat the record of 5 held by Sir Matt Busby. A record that had stood for 73 years
2) The only manager who went 15 games unbeaten in any competition from day one of starting the job.
3) Since taking over, OGS picked up 25 points, this was more points than any other manager has managed in their first nine games in charge of a single club in the Premier League.
4) Set a record of 8 consecutive away victories in all competitions
No interim EPL manager has been able to better him. OGS was given the job full time and it immediately went all down hill from there.
The stats OGS produced at United when as interim manager are stats any interim or full time manager would love to have. Only OGS knows why he was not able to continue his winning ways when he was given the job full time.
OGS get's a lot of grief from fans and critics because of his time as United manager but his time as interim manager, the results he produced are what other managers can only dream of. It is just a shame he was not able for it to continue.
That would equivalent of a F1 team giving a rookie driver a start because of injury to one of their main drivers. The rookie wins their first 6 races in a row, get's the top fastest lap times from 5 of those 6 races, get's given the job full time because the main driver is out for the season due to injury and then suddenly it all goes wrong, the rookie driver comes in 15 or below in his next 4 races.
Therefore, my view is that recruiting a former player as your manager can work, OGS proved that in his 19 games in charge. Why it went wrong only OGS can tell us that.