A summer in which a few green shoots of recovery for British tennis ended with the Davis Cup team looking ahead to next year’s shot at gaining promotion back to the elite World Group. But, as captain Leon Smith admitted after victory was wrapped up against Hungary, everything continues to rest on the participation of Andy Murray, who signed off by repeating his assertion that the ATP calendar is ‘ridiculous’.‘The schedule’s messed up and we need to change it,’ said Murray, who beat Hungary’s Gyorgy Balazs 7-6, 6-4 in what was effectively an exhibition match.Smith’s most important job continues to be that of persuading Murray to turn up, but that may not be so easy in 2012, which is already complicated by the Olympics.If Britain are to return to the elite 16-team World Group they are likely to have to win rounds in February, April and September, and that could seriously test the commitment of Murray, who needs to play a minimum 18 ATP events already.This was GB’s fourth consecutive victory since Smith took over, but all have been home ties and the odds are that there will be some tricky away trips if re-entry into the Davis Cup’s Premier League is to be achieved.