That is a spot on observation from Baines. I can't help but comparing his comments with what I see in my home club. And because of that he's absolutely right. However the manager has a LOT to do with that chemistry. Sure You don't really want comparison with Hungarian football, but I'll do it anyway because it's mostly about managing people.
We have the best coach I think this club ever had in its history: not just in a tactical but in a personal view. Every single player loves him, the players always look like a big happy family - on and out of the pitch. And when they play we can see that they just enjoy playing in that team, every single second of it. And because of that they nearly always play fascinating.
It is the manager's task to maintain both balance between healty rivalry and that fraternity feeling. Our manager had 2 very important quotes the last 2,5 years from my point of view.
1, This year, after losing in the league for the first time in the 17th round: "This is all my fault. Every single game which we won it's because the guys worked very hard for it. When we lose, it's always on me, always on the coach; surely I did something wrong and I have to fix it."
2, "Football is very-very huge business. But at the same time no coach or player can ever forget why they decided to play football when they were young. They played because they could spend some time with friends. And if they don't forget that they can always play beautiful football with their friends throughout their carriers."