This is certainly true. Mike Schmidt wanted to be a coach, but not that sort of coach. With many $millions invested comes a great desire to live better than that.
A bigger question, pertinent with our just hiring a first-time manager, is whether this 'paying your dues' is actually necessary or just a part of the hierarchical system throughout various parts of baseball and each silo's disdain for those who excel in a neighboring silo jumping above them in their silo. If Schmidt understands hitting, has theories on hitting developed over a long HOF career, has good communication skills and the ability to explain his hitting theories in easily understood terms, and the patience to sit back and watch his pupils SLOWLY progress from practice to consistently adopting his teaching within actual games -- then why shouldn't he be able to jump right into teaching hitting at an MLB level.
I think the Phillies as an organization have been inordinately fixated on players and others having to pay their dues, before they can be allowed to do what they are able to do. That's one reason I see our first-time manager as a positive change. Coming from outside our org is also a plus. Coming from the very successful and very aggressive Dodgers organization is also a plus. If you want to build a winner and have that team, which is capable of winning, actually win then it has to be pedal to the metal all the time.
Pay your dues is the epitome of old school thought.