Teams evolve as they get better because they get better at playing in the system/tactics, not because the system/tactics are changed.
Why do teams evolve, if they're getting better at what they do? That's a contradictory statement. Teams evolve because they want to adapt to circumstances.
You don't play one way for two years as a manager, be relatively successful and then flip a switch to something completely different. It's just not the way it works as if you're wrong you are out of a job at worst and at best the players start doubting you.
If this is with perspective of Gerrard, then what way is that? I mean you watched a handful of games when they played superior sides and concluded his style was defensive. They played Celtic a few times under him, and they were hardly defensive in those games. It was only when they played some superior sides in Europe, that he was more cautious in his approach. Of course, you have to adapt to certain games - most Top managers did that. If you don't, you'll get battered like how Leeds were earlier in the season by United.
There is a lot of focus on 13 goals conceded by Rangers, which is exceptional - but us in 2018/19 conceded just 22 goals in the season. That doesn't mean were defensive. Rangers scored 92 goals in that season, which is conveniently ignored in your points.
Klopp didn't fix our defense by changing tactics, he fixed it by getting better players for his style/tactics.
Maybe you didn't notice things in depth or maybe you just forgot, but since we got Klopp, year on year, our Goals conceded column kept declining until it reached its lowest in 2018-19. I saw steady progress. We did pressures under Rodgers, but never pressed in an organized way. Klopp saw that, he got us organized little by little and that's how he fixed the defense. Our defense of Matip and Lovren was stable for a while before even Van Dijk came, and we were steadily improving, bar the odd shockers, so it wasn't a case of just getting Van Dijk and voila, everything changed with our defense. He was the final piece of the jigsaw, not the initial one.
Klopp and his staff will know how much they worked in training to get our defense right.
This thread just reinforces for me that if Gerrard does succeed Klopp the first run of bad results will probably break this forum and create some real ugly responses in the fan base as a whole.
I don't know how you're getting that, from this discussion. Many of us do not even want to discuss whether or not the move to us would happen. Sometimes, it's not all about us. First, he has carried massive pressure already as a player from us fans. Why do some of us want to pressurize him even after he has become a manager and so far, not even here? It's absurd. If he's good enough, we'll maybe look at him. If not, we'll look elsewhere. That's all there to it. Why do we even discuss things going wrong, when it's going to be way down the future for the club to even decide whether he will be in our consideration? This part of the post reeks of negativity.
As of now, he will do his thing with Villa, and he will take the best approach to improve them. The signs are already there that he will take them further. Sometimes, it's about giving a legend of the club the time and space he needs to progress his management career, without thinking of us.