According to volleyball officials, Kim Hee-jin and Kim Soo-ji (now IBK Industrial Bank of Korea) are also expected to join the cohort training. The two players are currently participating in training for their teams after recovering from injuries."
That's great news about Heejin's recovery, glad to see she's already in good enough condition to train with her team.
Not too surprised since it was quite expected after seeing their update in the IBK video, but just concerned about how well Heejin's rehab would go.
Problem is... the main issue of the setter & libero on the team like stated in the article isn't solved.
Libero is the biggest issue on defence (as well as the digging capabilities of the other members)
Setter, naturally, plays the most important role of connecting the defence to the attack, while also playmaking for the team.
A good setter can help salvage a poor dig, and also set well to overcome blocks (i.e. creating 1-to-1 scenario) helping weaker/shorter spikers.