Young is 183cm so hes not small, fools
It is a generous 183.
Young's career was doomed from the start. He was pushed into ATP events way too soon with wild cards. Miami 2006, he lost to Carlos Berlocq 1st round 0-6 0-6. Berlocq would then lose to Blake 0-6 0-6 in the next round. Had to have been a confidence destroyer.
He's still very young, turns 21 in July.
He's been in the top 100 before, up to 74 or so his career high. I think he needs three things.
1. To get more power in his game. He's got a good game, but he can't finish points. His volleys aren't that bad, but often he misses them due to his approach being a bitch shot that the opponent can get to and get a nice pass on. Whether it be in the gym, technique, or a racquet switch, he needs to do one of these things.
2. Maturity. I know this sounds a bit hypocritical from someone 4 months younger than D.Y., but his mental game isn't up to par. Easily frustrated. He should read the Inner Game of Tennis as well as Winning Ugly (I know Brad Gilbert is a bit of a clown, but he knows his shit).