As usual, you only see extremes. Lindsay Davenport made the point earlier that it's a big thing in the men's game for young players to go, for the first times, into best of 5 matches. There have been teenagers that developed early and navigated it better, but it's rarer. As to Roger, you'll talk about him under-achieving all the time. You opinion is so biased as to be negated. I think Fiero has it more right to say that it took time for Roger's game to "gel." If he was slower to develop and get results, he surely made up for it.