This current Korean team is a far-cry from what they used to be in 2018/19, which is such a pity for Lavarini who had built up such a great system.
With only 2 months left before their first Olympic match (1 month in VNL, 2 weeks in quarantine before Japan if they head there straight after), their only hope will be if Kim Heejin (surgery late May), Kim Suji and Im Myung Ok libero (unspecified injuries from season) can join the team in time for the Olympics.
But they will only have days to practice with the new setters, and may not be in their peak condition - even if they do return in time.
Sohwi and the twins are out of the Olympics lineup for sure, and Kim Haeran is highly unlikely considering her first practice after childbirth was only in late May.
Assuming no upset takes place, Korea will have to beat at least Kenya & Dominican Republic in their pool to advance to the Top 16.
(likely losing to Japan, Brazil & Serbia)
At this rate and looking at the current team's power & coordination, doesn't seem likely they'd stand a chance against Dominican too, seeing how they lost against Dominican Republic. (note: only 2 months before Olympics, how much magic can Lavarini cast on such a team?)
Edit: Switched Serbia and Dominican Republic above, did a brain fart here - thanks to LDVolley