It's simplistic, but the way I see it Pep's City 1.0 was much happier going punch for punch and being quicker in transition and we got dumped out of Europe by teams because it becomes like a heavyweight slogging boxing match and they only need to land a lucky punch and we are knocked out.
Pep's City 2.0 is built on control, and not giving the other team the opportunity to land a punch. Gary Neville described it as Mayweather boxing, and we've got to a CL final playing like that. It's a little slower to watch against some of the smaller teams, but it's more sustainable. Though the real test is Europe again. We'll know at the end of the season!