LONDON -- He may have just been officially crowned world No. 1 for the first time in his career but it was business as usual for Andy Murray.I dont feel any different this week than I did the week before when I get up in the morning and stuff, he said at a news conference ahead of the World Tour Finals.Maybe when you step on court, you have a little more confidence, feel a little better about yourself when youre hitting balls and getting ready for the tournament.He spoke to his coach, Ivan Lendl, on the phone Saturday night in Paris, after Milos Raonics withdrawal from their semifinal confirmed he would finally overtake Novak Djokovic at the top of the rankings.[Lendl] congratulated me on getting to No. 1, said Murray.We started talking about the final the next day, what we were gonna do to prepare for this event. We didnt chat too long about the last few months. He had watched quite a few of my matches but when we got here it was back to work.There are things to improve and get better at. I like that. Its good. I dont need to be discussing the last few months -- I need to keep getting better. Thats what Ive always done when weve been working together.That determination to keep striving for the top is what drove Murray on to wipe out a deficit of more than 8,000 points and overhaul Djokovic at th etop of the rankings.It was another golden moment in a career which has seen him win the US Open, two Wimbledon titles, two Olympic gold medals and the Davis Cup.But the Scots achievements over the past five years have posed an uncomfortable question to British tennis -- where is the next Andy Murray coming from?When Im done playing, and my brother [Jamie] is finished playing, I hope that its good and its positive and that British tennis is in a better place than when we started, he said, before warning: I dont know if thats the case just now.Murray has previously hailed Kyle Edmund as the future of the mens game in Britain, and the 21-year-old reached a career-high ranking of 40 in October.Daniel Evans, 26, has also improved this year, reaching a career-high No. 53, and held match point against eventual champion Stan Wawrinka in the US Open third round.In the womens game, Johanna Konta has continued her steady progress and narrowly missed out on a place at the season-ending WTA finals in Singapore.But it is the apparent absence of a next generation -- and a seeming lack of knowledge of how to create one -- that is worrying for British tennis.I dont think you can create world No. 1s, said Murray. Its a really hard thing to achieve. Even with the best plans and structure in place, you dont guarantee youll get someone to win a Grand Slam or get to No. 1.Murray would certainly know, given the personal sacrifices he made to get to the top of the game. He left his family behind in Britain to train in Spain at the age of 15, where he says he went from practising four hours a week to more than that amount every day.He has kept that work ethic his whole career, and it finally drove him to top spot in the rankings at the age of 29 -- he is the oldest first-time No. 1 since John Newcombe (30) in 1974.Its not just about me. A lot of people involved in British tennis are responsible, said Murray, when asked about the legacy he will leave behind.Having consistent leadership and a consistent, clear plan for longer than three or four years at a time would certainly help. Since Ive been old enough to understand, thats whats happened -- there have always been new people coming after a few years, and change from whats been happening.Michael Downey joined the Lawn Tennis Association (LTA) as chief executive in January 2014, succeeding Roger Draper in the role, who in turn had replaced John Crowther in 2006.There has been upheaval in other positions too, during Murrays professional career, with David Felgate sacked from his post as performance director in 2006, and his successor Jeremy Bates leaving the role less than a year later.Most recently, Bob Brett was appointed to the position in early 2014 but resigned in July 2015.You never find out whether somethings working or not, Murray continued Friday. It takes longer than a few years to change a system. Hopefully we can get some continuity. That would help.Change happens all the time, every few years. Whoever is leading, they leave, someone else comes in and does something completely different. Its difficult to leave a legacy in three or four years.Changing so often is not good. Its counterproductive. I just hope that whatever structures are in place just now are positive, that they work.Downey was on the receiving end of criticism from Murray and the Scots Davis Cup teammates last December after they ended Britains 79-year wait for the title; Murray had said he didnt want to waste my time talking to the LTA about the state of British tennis.The LTA have also previously been criticised for failing to capitalise on Murrays first Wimbledon triumph in 2013, with participation falling in the months following.Downey had also come under fire for closing down the National Tennis Centre (NTC) in Roehampton, London, as an elite training base, with the best British players below the ATP and WTA Tour level now based at leading local centres. Mike Palmateer Maple Leafs Jersey .C. -- Glenn Howard needed an extra end to move into the Masters Grand Slam of Curling final. Dave Keon Jersey . 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