Firstly, I don't want him wiped out from tennis in this country. I just dont think it would be good for tennis as whole if he was to have anything to do with the "political" side of it all. As for coaching, yeah for sure as long as he isn't intent on making them clones of him, as you yourself admit to the fact he needed too, but didn't change with the times. I do have a lot to do with 9-15 year old players in my area and if they are the norm, then he is definately not an idol any longer, if these 40-50 kids are to go by.
In your opening post you said Hewitt needed to be one of the first to go. Now you're saying you wouldn't mind him coaching juniors. I'm a bit confused there.
Of course he wouldn't make them clones of him, players have their own strenghs and weaknesses, he can't just tell a player how to play.
Maybe some of the kids you see haven't seen him play his whole career and only began following him recently when he hasn't had the same success. We all know the kids love a winner. Ask any kid who their favourite player is and they will say Fed or Rafa.
Anyway I see Rusty being more in the Davis Cup field, but he is essential to tennis going foward in this country - that much is for certain.