"Schalke's squad is poorly composed. We are talking about the sins of the past," the 59-year-old said.
Luo Xinyu bagged 18 points for Jiangsu, who also got 14 points apiece from Xu Chenyan and Jiang Jiayin.
Meanwhile Southampton claimed a routine 2-0 victory at home to West Bromwich Albion, who is still searching for its first win of the campaign.
Inner Mongolia will meet Shandong on Sunday, while Hebei will face Shanxi on Tuesday. Enditem
Wuhan did enough work to contain Xinjiang after the tip-off, but Xinjiang pulled away with a 17-2 spurt before the halftime for a 38-25 lead.
"It's because I did a lot of things well. I played more aggressively than the previous days. I went to the net more often, and I hit a lot of winners," added the 12-time French Open champion, who needed only one hour and 35 minutes to see off his opponent.
With the result, Bayern Munich moves to the fourth position meanwhile Hertha Berlin suffered its second defeat to slip to the 13th position.
Earlier on the Court Philippe-Chatrier, men's singles third seed, Dominic Thiem claimed another straight-set victory over 28th seed Casper Ruud, beating the Norwegian 6-4, 6-3, 6-1 to set up a last-16 clash against the winner between 2015 champion Stan Wawrinka and Hugo Gaston.
Outscoring its opponent 28-14 after the first quarter, Jiangsu was never really challenged by Shaanxi over the ensuing three quarters.
In contrast, a solid nine goals adorned the match in Banska Bystrica.
Sichuan found its formidable game in the second quarter, responding with a 17-2 run and taking a 41-39 lead going into the second half.