Excellent opportunity no one can know exactly how he'll do, nor him. What I can say is that throughout his career people have spoken about him as a natural leader, as someone who took more interest that those around him in coaching, managing, tactics. He went straight into coaching and was hired by one of the best managers around because he believed him in. He spends day in day out sharing his thoughts and views on how the City team run with a great manager while learning.
I don't believe in any way that managers must rise through the ranks, manage at a lower level. You either have the tactical knowledge, ability to motivate and general things you need to be a good manager or you don't. Some big guys in the sport believe he has the knowledge to do the job, will he have the rest needed, only time will tell. I think he has every chance of being a good manager but taking over a top team with a good squad and taking over a club playing badly with no confidence and some major gaps in the squad are different things. I think he can do well given time to train and change the team.
Also kinda hoping he decides to sign himself as a player and add to our midfield... because we need it.