stumpski
International Captain
Three batsmen that started out as perhaps the best in the world but were merely very good after that:
Arthur Morris
Denis Compton
Dougie Walters
First and last fair enough perhaps, but Compo is an all-time great in my book. Knee problems limited his effectiveness in the 50s, and he also went on a final tour to South Africa when in hindsight his place should have gone to a younger player. Blew a bit hot and cold in Australia admittedly.