yep. I only saw highlight but berdy was hitting chung's spots and Chung just hit to him most of times (I've watched several chung's matches and looks like that it his game for now: Just hitting to opponents and having a point. the strategy might work for challenger level but won't work at ATP level in my opinion).
I strongly think that chung needs new coach who has ATP experience and they can give better game plans and some improvements for other areas.
6-3, 7-5 was not bad against Berdy.
Well I'm not sure if you can say that his game doesn't work for ATP. I think he just looked extra pushy today because he didn't have his best day and was getting outplayed. He did beat Zverev and Monfils recently, among others so his game should be good enough to work. I think he's trying to go for a Djokovic kind of play eventually. He did say that Novak is his idol.
The coaching part is true but I think he currently doesn't have the money to hire a better coach.
He definitely had his chances today. Was up a break two times in the 2nd set but got broken back immediately and then a couple of times more. His game on serve was completely lacking today, hitting DFs on crucial points.
Oh well, it's just a 250. RG up next. For now he should focus on getting his ranking up in the top 50 so he never has to play qualies for anything again.