It's sad how this all turned out, but it might've been for the best.
There are not many doubts about the arriving late for training incident, but I'm not so sure about this one. Media, Twitter accounts and some posters here are trying to depict him as a poisonous troublemaker, but everything I've seen of him suggests he's just a jokey, fun-loving, childish type of guy, albeit undisciplined(which he deserves to be criticized and punished for until he learns).
First they say he refused to come on, which turned out to be bullshit.(but the damage to his reputation hasn't been undone)
Then they try to make it all about words he MIGHT have said AFTER Rino had ridiculed him by picking Mauri instead. He wasn't even standing up or creating a scene. It's only being noticed because all the focus were on him and Rino after the shock sub, and Rino gave them what they were looking for by confronting Baka at that moment.
He supposedly took forever to begin his warm up, but the cameras showed him warm up the first time Biglia went down, 3 mins before the second time.
He could've shown more urgency, but I'm not sure that warrants the snub or the backlash against Baka from fans and media. I think what happened was
Rino was in a stressful situation where the slightest thing would piss him off, and Baka not sharing his stress was enough.
But like I said, this may have been for the best.
Chelsea weren't going to accept anything less than the buyout clause, but now they might.
Baka for 40m would've been a huge risk, if the club is looking at coaches like Conte, Sarri and Gasperini. He may have been a given starter for Rino, but coaches with a clearer idea of how they want their team to play in possession tend to not even consider an undisciplined player at the anchor spot.