Roma is nothing like us. The play all out attack, and concede far more goals because of it. They also end up drawing the likes of Empoli and Cagliari in serie a, Viktoria Plizen and Austria Wien in Europa, getting knocked out of UCL qualifying against Porto.
Teams like Barca and Madrid can play all-out attacking football and sacrifice some defensive solidity because they have Messi, Ronaldo, Suarez, Neymar, Bale, Benzema in attack. Sacrificing defensive solidity for the likes of Salah, Dzeko, Perotti is never going to work out well over the course of a season.