After losing to Italy again, Who is the weakest? OP? OH2? Libero (Lin Li is injured and in fact doesn't play more matches)? Yuan Xin-yue (MB1)?
I think opposite position has always been the weakest link for China, for scoring. Other teams always have the better players so China really needs to find an OP that can score efficiently and consistently.
I still think the main problem for China is health. They lost half of their starters to retirement due to health and came in this tournament with a couple of players playing through injuries, Zhang Changning, Yan Ni, Ding Xia, Zeng Chunlei, Lin Li, etc. Zhu also played through with a shoulder injury. In a long tournament like WCH, health is of utmost importance.
The Olympics is 2 years away so there is time to find replacements and players to improve their game. Li Yingying needs to work on her reception and floor defense. Yuan Xinyue needs to work on her blocking. Biggest position to replace is setter in my opinion. Don't know how long Ding Xia can play but Yao Di is not cut out for this A team. Liu Xiaotong and Zeng Chunlei might need replacements. Everyone else is just staying healthy and keeping their form until 2020, biggest concern.