David Felgate, performance director at the Lawn Tennis Association, tells BBC Sport how Britain's leading tennis players fared in 2004.
Felgate: "He made two Grand Slam semi-finals, but knowing Tim and his desire that's not enough. He believes there can be more. He's just got to put himself in the position again to go a step further.
2004: Reached French and US Open semis, Wimbledon quarters, qualified for Masters Cup
"It's been a great month for him with the birth of his second child and now he'll focus his attention on 2005.
"Seeing Tim at the Davis Cup, at close hand for the first time for a while, his desire and his passion is still there. While that remains and he's healthy, why not? He still plays in a unique way out there."
"I think it's been one of the greatest comebacks in tennis and it's been overshadowed by Tim's success. In the context of where Greg started the year and what was going on, it's been incredible.
2004: Cleared of doping offence in March. Won Newport title in July, runner-up in Moscow
"I really think it's spectacular that he's back in the top 50. People don't have any idea the depths to which he's gone, not only to be cleared but to back it up with his tennis.
"Purely selfishly I'd love to see Greg and Tim playing Davis Cup in 2005 and getting us back in the World Group."
"He started well the first three months of the year and has been as high as 140, but then didn't quite have the results. I believe the way he strikes the ball, there's still the potential to make the top 100.
2004: Won Vietnam challenger, qualified for first Masters Series event in Cincinatti
"He crept into a Masters Series and he shows signs of it, but ultimately it's up to him, as it is any player. I'm not thinking he can't do it but it doesn't get easier and you've got to continue working."
"He still has maturing to do as a player and a person. He shows signs when he has good moments and tournaments, but if he wants to break through it needs to happen on a more consistent basis.
2004: LTA funding withdrawn in April over lack of commitment. Won challenger in Manchester, runner-up in Nottingham
"But of all the talk at Wimbledon of him being kicked out by the LTA, he's been training with us for the last four or five months. In all honesty, it was a story blown out of proportion."
"I saw a quote from him after the US Open that the futures events he had won meant as much to him. That sums him up. The kid knows where he's at, where he wants to go.
2004: Won four futures events and US Open junior title. Named BBC's Young Sports Personality of the Year
"Everything I see from him suggests he's got his head screwed on. I take the quotes about being top 100 by the French Open with a pinch of salt - it's almost mathematically impossible.
"When you're young, you say things and people cotton on to them. But it doesn't affect him. To me it doesn't matter when he gets there. A great year but he has it in perspective."
"Since Wimbledon I think he's progressed how we would have expected him to if he hadn't reached that final. Expectations became higher and he's probably not ready to step up yet.
2004: Won Grade II event in Florence, junior Queen's title, junior Wimbledon runner-up
"A lot needs to happen in his game and in terms of maturity. If he hadn't won those matches we wouldn't be talking about him now. I think he's got a couple more years.
"In a football context he'd be in the youth or reserve team, working on his game, and people would be calling for him to get in the first team. But he's not ready."
"She's back hitting tennis balls and the target date for tournaments might be April, or that may be too soon.
2004: Won ITF event in Redding, USA, in March. Lost to Maria Sharapova at Wimbledon. Suffered serious knee injury in Lexington, USA, in August
"I've seen her more focused than ever. An injury like that can teach you how much you love the game and just seeing her work out in La Manga, my only fear is her going too fast.
"It's only nine weeks ago she did it and she's out playing. The difficult period will be the next couple of months because she's improved very quickly but you have to take time to come back."
"She's had a year free of injury and had some decent results recently. We all saw the talent and ball-striking ability when she played Jennifer Capriati at Wimbledon.
2004: Reached ITF semi-finals in Hull, Sunderland, final in Jersey. Lost to Capriati at Wimbledon
"I'm sure if she keeps working and stays injury free she could be a top-100 player, there's no doubt."
"I would give special mention to Josh. He had no ranking this time last year as he'd just finished the juniors. He's ranked 352 now.
2004: Reached futures final in Korea, semi-finals in Edinburgh and Bolton
"I know Andrew (Murray) and Miles (Kasiri) get all the plaudits this year but he's only a year and a half older, and he's at 352."