The German believes Spurs are on the up with Juande Ramos in charge and said: "We are a lot more together now. We are one big family. It was like that before, but we feel that everyone has to help each other now. Everyone is happy and that is why we win now.
"Juande is a special manager because from the outset everyone knew that he had won the UEFA Cup two times. That means he knows what he is doing.
"He respects every player, even if he is in the reserves or the youth team. Everyone can see this.
"It doesn't matter if it is the biggest name like Dimitar Berbatov or a youth player, the one who plays the best on the training pitch will play. The training is different. I feel fitter than ever, more than I ever was at Hertha Berlin."
Ramos tried to sign Boateng when he was still in charge at Sevilla and that encouraged him when his appointment was confirmed.
He added: "It gave me a boost because while I respected Martin, I knew that I had a new opportunity. The manager already knew what I could do and liked me so it was a bit easier.
"One of the first things he asked me when he arrived was why I hadn't wanted to go to Sevilla! He had been scouting me since I was young and that is why he knew how good a player I was.
"I knew when I came here that I wasn't going to be the big star and that I would have to work hard to get in the team.
"It was difficult because I wasn't used to playing for the reserves. But I am happy now because Ramos has given me the chance to show people what I can do."