If Lendl feels he can't motivate Andy anymore and if Andy feels satisfied after his Olympics and Wimbledon titles, then Lendl is more than likely to walk away. Andy, after all, hasn't won one single title since Wimbledon. Not only that, he lost in two Slams back to back in the qtr finals to Wawrinka and Federer. Whereas after winning USO in 2012 he went on to make the AO final beating Federer on his way. won Brisbane, Miami and Queens before winning Wimbledon. I know the surgery happened in between but that's also the problem, because you really can't tell whether Andy is still motivated or not as it gets really overshadowed by this surgery. But the fact remains, if Andy is really taking time to come around after the surgery and if the surgery is really the thing that's holding Andy back, then it begs the question - why would Lendl leave at a time like this citing all sorts of nonsense? Makes no sense when the same person vowed to stay with Andy until the end of his career. Unless this somehow is the end of career? Has Andy hinted something to Lendl? We don't know but as I said earlier, time will tell.
If Andy is not motivated then he'll be unable to defend his title at Wimbledon. We can't really play this surgery card anymore. It just feels like a cover up of what actually is going on. I wouldn't blame Andy AT ALL if he does indeed feel satisfied, Hey, it's his life and he has suffered enough and it is ultimately his decision. God knows it isn't easy to be a British player especially for a guy like Andy, who seems to keep such a low profile. Who isn't as flamboyant as Beckham or as fleshy as some other Brits.
Anyway, I am very sad about all this because I really adored this pair and it felt as if it was a match made in Heaven. Andy looked like Lendl's son most of the time and vice versa. And I remember how much fun they had together just before winning Wimbledon at Queens. We'll just have to wait until the end of this year.
But change is good. Change is for the better if that's what in the card. In that case, I do think Andy will benefit greatly who knows a thing or two about the serves. The mentality is there but a bit of technicality on the serves is still required. He really needs to make his 1st serve more consistent to the point when he's not feeling confident or mind is not there, he can still rely on it. And he can always choose to disguise his 2nd serve. Placing it wisely would be far more helpful than the power but ideal would be to serve a high percentage of 1st serve regardless so that he wouldn't have to go to his 2nd serve.