When they lose the ball the have guys like Bernardo, Foden, Alvarez, De Bruyne, Grealish, Doku, etc, all chasing back. All interested in the off-the-ball responsibilities in both attacking and defensive transitions. They just do the hard work. Money spent just can't guarantee that kind of running. You've got to have the right personalities. They've spent a lot of money but does anyone recall a City player under Pep that had poor work ethic? We've spent a lot too and the list is tirelessly lengthy.