I hope people realize how important a long-standing core is after seeing LCQ in the Pacific and Americas.
Cores that have existed for multiple years such as Zeta, TS, Kru, and Leviathan (yeah adverso and Melser left, but the main three remained), have seen the most success in LCQ. EMEA is weird since everyone came in with a blown-up/new roster to the league. We can also see the seasoned cores who had immense success in the regular season from PRX, DRX, Loud, NRG, and Fnatic. It's so obvious the skill difference between them and the teams who created new systems, and cores, and tried to build anew this year. Time will tell, but I don't think many rosters can justify massive changes (dropping more than one player) other than massive underperformers like DFM and MIBR. Those who are yelling for teams like Sentinels, GE, and 100T to blow up their rosters don't make a bunch of sense. I agree, their performances were mediocre with simple ideas (Sentinels ran exclusively LOUD's mid-takes on Split, and 100T looked too nervy and way too separated for a professional team, GE was a sad result so close but so far, and Rossi failed to compete). But you have to understand, 2 months is time for sure, but for humans 2 months does nothing.
It takes years to build rosters that communicate properly and work together in a cohesive unit. It's pretty stupid to think what wasn't accomplished in a 2-month regular season, will be immediately changed in a 2-month off-season, even C9, a team we applaud for how they looked still is struggling in LCQ to a roster that has had more time than them, plain and simple.
This is just my opinion, but I think the time a core has together as people means more than just the off-season and practice they get in. Until a team VASTLY underperforms like DFM or MIBR, blowing up the roster simply isn't the play. it just jumbles the system and messes up rosters. but that's just me