If we're talking about managers who havent done much for ten years or so and are still young enough (60) how about the Third Best Player in the World Ever.
His managerial record isnt too bad ;)
4 league titles
3 domestic cups
1 European Cup
2 Cup Winners Cups
Although he hasnt managed in ten years he is still very much involved in the game.
And his English is better than most of our players.
PS - I remember Cruijff being the only person who gave us a chance going into Euro88. Everyone else laughed us off.