That's true, to be a Madrid coach you ought to be very successful and manage your players to be at the very best just like Zinedine Zidane and other successful coach did and once they notice any signs of weakness or threat in your managerial skills then you'll be offloaded immediately that's why they didn't hesitate to sack Ancelotti even after he won them a Champions League trophy, Xabi knows this, he's played for Madrid and knows the standards they want from him, he knows that failure won't be tolerated so he'll do his best and if it's not enough unfortunately he'll get sacked by Perez, anyways we're hoping that he succeeds in his dream job and win many trophies.