You specifically cited his ability to adapt and take care of himself during his career, which is why I raised the Yoga bit. Given his lack of experience as a manager, let alone at a top club, what has he done that makes you believe he will be successful at managing the world's biggest club ?
No one knows if he will be successful, I never suggest that anyway. All I say is I like what I see from his traits to groom as our future manager.
Maybe let's first start with what makes a good manager. For me its Tactical knowledge, Man Management, Motivating, Discipline, Judging player's ability and potential, match preparation/opponents analysis, formulating game plan and execution, develop righting culture/mentality to the dressing room etc. and that's how I assess Giggs capablility to become future manager of our club
Tactical knowledge - After over 20 years of playing at top, over 1000 games played, successfully adapting into different roles and style of play, I think he has reasonably better knowledge base of the game than most others.
Man Management - We don't know how well could he manage players as a manager. But there are many traits which looks very hopeful to me. First of all he managed himself well over his long career, secondly players used to look up to him, and thirdly he seems to manage his relationship well with his colleagues and coaches, gaining alot of respect from them as well.
Motivating - This maybe an unknown, but again he motivates himself very well even after winning 13 league titles and especially after so many years. And it also seems he is capable of giving a good motivational talk, as revealed by some of our players (Linegaard, Herrera)
Discipline - He was never once sent off in his 24 seasons for the club. Not a bad discipline record. But question remain to be asked how well and fair could he discipline others when he needs to.
Juding player's ability and potential - I heard somewhere Giggs is responsible for scouting Martial for a year and then recommend the club to sign him. Also he must be one of those players begging Fergie to sign the young Ronaldo after the friendly. That's not much in it though, but not a bad record for spotting talent.
Match preparation/opponents analysis - Unknown. But as assistant manager he is learning that everyday.
Formulating game plan and execution - Unknown. Same as above.
Develop right culture/mentality to the dressing room - He epitomize true values and culture of the club. No one knows the club better than him, from inside out.