AVB didn't really stand a chance at Chelsea, being such a disfunctional club but Pandy is right in that he tried to change too much and alienated players. Luckily he learn't from that which has benefited us. I've been looking at pictures of AVB and looking at TV interviews and the difference between his time at the 2 clubs is quite stark. At Chelsea he was quite moody & tetchy and looked stressed but now at Spurs he smiles a lot, his demeanor is relaxed and he seems to have a good relationship with the players and those around him
I'm convinced there's something up with his difference in demeanour compared to when at Chelsea, because it is very strange. In his biography, he is described as being exactly like he is now with us, when he was at Porto. He is relaxed, he answers all questions, and does media duties for the club to make sure they always have what they need (I'm sure he does an interview after every game for the official website, and don't think Harry ever really did this, certainly not for every game).
I guess he thought that going to Chelsea, the way to handle the media was to act like Mourinho, and not be himself. He probably thought there was an advantage to be gained from creating an 'us vs them' mentality but it backfired. That, along with the way that he banished the likes of Alex (which is also totally different from how he acts here, with how Dawson was saying AVB was honest with him, not confrontational) was probably the biggest mistake that he made. He thought he had to act like someone else, rather than be himself, and the players and media saw right through it. I'd imagine since his break that was the biggest thing he realised, and the thing he decided to change. People probably said to him he just needed to be himself and it would work. He was readily tactically, he is a great coach by all accounts with his modern training, but the Chelsea experience probably reinforced to him that it's important if you are going to be a leader to be comfortable in your own skin, and not need to pretend to be anybody else.
So that could have happened, or maybe it was all a plan from Levy and Lewis to ruin Chelsea from the beginning. They send some dosh AVB's way and tell him to go to Chelsea and act like an absolute tool, with the promise that he gets a job to rebuild his reputation with us once the mission is completed. It was all sweet payback for stealing Arnesen and halting our progress. Why else would AVB act in such an obviously different way compared to his Porto and Spurs days?