Forget about Top 4 and all. The guy is laying a proper foundation. We are finally looked like a team coached with modern philosophy of high intensity attacking football.
We are starting to control game, coordinated pressing, keep possession (we can't string 2 passes together under Ole when pressed), players actually running more, players starting to give their 100%, team spirit and never give up attitude. Albeit there is still a lot of room to improve in final third.
Even, the fringe players starting to fit into the system like Telles, Dalot, Elanga, Jones, Matic and etc. The team start to depend a lot more on tactic, system and style of play. This is what top team like City and Pool do where the system is more important than individual player. This feel like under SAF where the squad players can step into the system and contribute without massive drop of quality to the team.
Rangnick also bring into the club new culture, discipline, demand and standard to the club. It's not under Ole anymore where players are bigger than the manager resulted with the laziest, indiscipline and most under performed squad in EPL.
The nex manager wether it's Ten Hag or Poch will have much easier transition and hopefully bring us back to winning top honours. Hope this modernisation and proper management of the club will continue in the long future after the next manager and so forth.