I think it is remarkable what they have done on the data-side, and broadly what they wanted to do since the start. When they first took over they were quickly tagged with the moneyballer label, and in the media at least they were roundly told 'you can't do that here', 'stats don't work in a flowing game' blablabla. Meanwhile, out of the media glare they were consulting with a great number of respected figures in the game on all aspects of the sport. David Dein we know put them onto Jurgen Klopp as 'the coming force' in football management, and from elsewhere they were recommended Comolli as their stats guy. Despite the fact that he didn't work out as they intended (although, one of his main signings just captained us to the European Cup...) they didn't conclude that 'stats won't work' but kept trying to find the right model which eventually leads to Edwards, the data guys recruited from disparate backgrounds, and becoming one of, if not the world leader at the present time. You would find very few now that don't believe that data driven decisions is one of the most important emerging methods in football. Obviously the coaching environment matters here, too. You just have to look at Firmino - under Rodgers a generic attacker used out wide or not at all, under Klopp he almost immediately becomes centre forward and never moves.