There's really no other explanation other than Puig is so much of a POS with a complete disregard for authority.
And as it appears that's the case, I'm raising my hand. Both, honestly.
I think you're all overthinking this. The answer is much simpler than being a malcontent or disregarding authority. Those things take effort and if there's one thing we've learned over the years it's that Yasiel Puig isn't exactly fond of effort for the most part.
Puig's issue is an issue that has plauged many latin ballplayers for years -- by every measure he has it made. So why does he need to a) work harder, b) take coaching instruction, or c) listen to the front office?
While 42 million dollars is a fraction of what Puig could earn over his career if he were to actually apply himself and harness his talent anywhere close to its fullest, the truth of the matter is that it's 42 million more dollars than he grew up with. He's rich beyond his wildest dreams and he got that money through using his genetic gifts without working too hard to hone them.
Why should he take coaching? He got there already just doing what he has always done. He doesn't need to become "baseball smart" because his natural talent has been enough all this time. He doesn't need to be a good teammate because he has been good enough to get this far being a shitty teammate.
Puig isn't the first, and certainly won't be the last latin player to have these issues. In a way he reminds me of a poor man's Raul Mondesi, another player who figured they had it made early on and rode it only as far as his natural talent would take him and nor farther. The same thing can be said for the other Cubans listed in this thread whom the Dodgers have had issues with (Arrubaruena and Guerrero). They get guaranteed contracts that make them richer than most people will experience and they stop putting in the hard work.
Puig has extreme talent married to a poor work ethic and a hard head. That combination will only get so far and, with regard to Puig, we've now it's upper bound.
Told you that the Dodgers should've traded him last off-season or at last year's trading deadline. :) At least then he had some value.