There's only one downside for Andy Murray in the news that Ivan Lendl is returning to work with him. It's that Boris Becker is still with Novak Djokovic.
All of a sudden being coached by a former champion is in vogue again. Richard Krajicek is working with Stan Wawrinka, Goran Ivanisevic continues to help Marin Cilic, and now John McEnroe has been engaged to guide Milos Raonic through the grass court season.
They will all bring their special brand of knowledge; what it takes to "get across the line", to use the current buzz expression, in a major tournament. The difference between nearly winning and actually getting there can be both a fine line and a gaping chasm - these people know how to bridge it.
There's every chance Murray's decision to reunite with Lendl, the coach who guided him to win Wimbledon, will be an immediate success. Due to start his defence of the Aegon Championships at Queen's Club today, he is a huge 2.245/4 favourite to collect the title.
The challenge of leaving the clay courts of Paris to playing on grass has always been a huge one. The Channel Slam, it's called, and only four men have done it since the Open Era began in 1968. It's a statistic that should make you worry before backing Djokovic at just 1.834/5 to win this year's Wimbledon.
The difference is that the Serb who already owns all four Grand Slams now has three weeks to acclimatise, and he proved last year that was all he needed after moving from an epic defeat by Wawrinka at Roland Garros to taking the title at SW19.
It was in February I suggested backing Djokovic at 8.07/1 to do the Golden Slam of all four majors plus the Olympics. It's down to 4.03/1 now but still looks a tempting bet.
The thing about Becker's involvement is that it has been total. He hasn't picked and chosen when to work and when not to, he hasn't skipped tournaments if Djokovic wanted him there. He's been an integral part of the champion's work and there's no sign of that changing.
There's also no sign of the world number one's body breaking down. Nadal has had to walk away from Wimbledon because of a wrist injury, and in any case is haunted by knee problems; Roger Federer is getting over back problems; Murray himself has also undergone major spinal operations in the past.
Djokovic at 29-years-old has had no such issues. I can remember right at the start of his career watching him do incredible, contortionist stretches, and maybe that early work is why his joints have stood up so well to years of pounding the courts. Whatever the reason, his fitness won't be in question as he chases down all those prizes.
Maybe that's why Becker is looking forward to the renewed rivalry with the man he beat three times at Wimbledon, twice in semi-finals and once in the final.
"Very excited about the news Lendl joining TeamMurray. Welcome back to the locker room Ivan," he tweeted.
You suspect, however, that half the reason he's so glad to see Lendl back is to enjoy notching yet another victory against him. Becker has turned the players' box into a sort of off court legends contest and with Djokovic as his man, he knows he'll go on winning.