When people say 'experience is the best teacher', soccer is one industry that further exemplifies that and it occurs to both players and managers. As players grow and play at different competitions and with different teams, they learn how to further maximize their potentials and talents. The same thing goes to the managers during their managerial experiences. While we have talented managers in the field doing exceptionally well for their clubs, they need the experience to be able to maximize their performance
Experience is one of the major factor that should be considered in every dimension, even in things outside soccer people always values experience perhaps that's actually the reasons why clubs normally go for the coaches that has a lot of coaching experience so that he will use the experience he has gotten to make the club more better perhaps that is why we have so many coaches but few are the most valued coach do to the fact that they have a lot of experience and things to offer than every others, though we cannot totally dispute the fact that most coaches that doesn't have experience are not good because there are some coaches that started with a less knowledge about coaching but as time goes by they started growing and became better.
Sure this is also applicable with players because the more they are actually playing for different teams that is how there experiences is growing and learning new things, however even Ronaldo for instance became the best because of experience, I could remember when he started playing with Manchester United and by then his performance was good but not actually good enough but the moment he joined other teams his experience started growing and from there he became unstoppable.