For the first time Cowell, Sharon Osbourne, Louis Walsh and new judge Dannii Minogue will work together during the show’s boot camp stage - a move which has led to “fundamental disagreements” among the quartet.
Cowell said: "We do the boot camp together this year, the four of us, which we've never done before. That's when I realised how out of sync we were with one another.
"I'm used to doing that part on my own. It wasn't arguing for the sake of arguing, we just fundamentally disagreed with each other on a number of things."