Is Klopp's 'style' that radical and distinctive that trying to transport it from Germany to the PL has proven it to fall apart in the absence of a winter break? The players are the same players, why would they suddenly succumb to a post Christmas crash purely because their manager is used to a few weeks off?
I think the short answer to the first question is yes. His methods at Dortmund (and Mainz) had long term damage on both clubs. Lots of injuries and lads burnt out. That was in a a league which at the time was some way below the intensity and standard of the Premier league (particularly the poorer teams) with 4 fewer games. Lots of fitness people who work high up in the game have highlighted major concerns with his approach, such as Arsenals former head of Sports and nutrition.
As for why? Thats a good question. Football is often about the 1 or 2% these days. I think you saw it with us and Martinez, it's hard to regain optimum fitness, and far more complex than just getting them to run. preparing athletes for a 10 month season takes careful planning. The Liverpool team to me now looks devoid of energy and intensity. It looks what it is, a group of lads who've had the nuts run off them and are running on empty.
Alongside that though, and what I find most interesting is as you said last season this was averted (albeit his methods only started in October). The form in 2017 is 23 points from 18 games. The form in 2016 was 79 from 39. It's a massive drop. From being a title contender to being a side that would finish in the bottom half. That is a massive loss of momentum. I think his honeymoon phase has gone and the real challenges begin now, and wonder if some of the players may be starting to question his methods?
For me this was his season to win the league. No European football, bedding in seasons for Conte, Mourinho & Pep, Wenger completely losing his players at Arsenal, Koemans first season at Everton etc. This allied to not having any of the long term problems associated with his Dortmund team and injuries, and a very strong start to the season all indicated this was their best opportunity. They completely fluffed their lines. What will be the impact of this going forward?
It's hard not to see Manchester City and United not kicking on next season. We will get better as well and have forward momentum. Spurs will remain solid. What happens with Chelsea is anyone's bet. However they look like the side in the top 7 who have the least forward momentum currently.