Will answer WP.
1/ Would think he has 3-5 years left in him
He always has excellent assistants under him with plenty of experience. Eg Ex coaches, Robert Shaw, Gary Ayres etc.
2/ Would think if Sheeds goes to another club and that he will, he will bring a package with him eg. Neale Daniher as an assistant etc.
If regards to an successor, it would only work if the person was currently in an assistant roles and had some tie with the club, eg. Richmond and Chris Bond for example. He couldnt bring on board an inexperienced assistant and expect the club to accept that.
Might also add that two of Richmond current assistants have had no experience before they started there roles, Eg King and Rawlings.
If you were running a business, you wouldnt employ Managers who havent had the experience would you ????? Richmond did on Wallaces recommendations so I see little difference if what Sheeds would do compared to current situation with inexperinced people in major roles.
the Sheedy model would solve this