Yeah, that was exactly what I wanted to imply, you got it.
Come on, you know that this is nonsense. Of course sport changes. Klopp's gegenpressing style is so demanding that maintaining it over an entire season would have been impossible in the 90s or even early 00s as
the players weren't fit enough back then. And then there's also the economic side. Football has grown so much that clubs can afford much better academies, bigger coaching teams, more in-depth scouting and performance analytics and so forth. You could go on and on and on. The ideas may remain the same in principle but there are so many enablers and facilitators that such a big sport changes almost from season to season. For what it's worth, what Guardiola and Klopp are doing would not have been possible 10 or maybe even just 5 years prior to their breakthrough seasons.
Read the posts of your fellow top reds, I've been making these points when the notion we could ever win a league title was still completely ridiculous