Cadamarteri was never that great really. He should have stuck around in the Premiership a bit longer but that's about it.
Jeffers on the other hand could have been a big star. His intelligence and movement was superb when he first broke through.
Another Everton one is Billy Kenny. Could have been the forerunner to Steven Gerrard. Cokehead who is still only in his 30's and plays Sunday league. Ended up stealing from the dressing room at Oldham. I found this from the Guardian on Google, good little write up apart from the daft last sentence:
And another one of the dogs of war,Joe Parkinson,whose career was cut short by injury,always felt he was a very good player.