The 51-year-old coach replaced interim coach Majid Namjoo Motlagh on the Tehran-based team.
Tianjin rode an early 8-0 spurt to race ahead, and compiled a 25-19 advantage as the first quarter ran out.
The two-time Grand Slam winner committed just seven unforced errors throughout the one-sided encounter and broke her opponent's serve six times.
Mainz were unable to gain a foothold into the first half and had to wait until the 38th minute to get their first chance on target, as Jean-Philippe Mateta's header came close.
Things got worse for Ole Gunnar Solskjaer's team as Anthony Martial was sent off for lashing out at Erik Lamela, and Harry Kane and Son made it 4-1 before halftime.
Two-time Grand Slam winner Kvitova had to bounce back from 1-5 down in the opening set against Canada's teenager Leylah Fernandez to set round-of-16 clash with Zhang.
Five Inner Mongolia players recorded double digit points, as they dominated the game. Li Yueru made 12 out of her total 14 shooting attempts, taking home a game-high 28 points, along with 14 rebounds. Zhang Qifang added 14 points. Wei Wei and Yang Liwei contributed 12 and 11 points respectively.
Henan whittled away Shanxi's lead to three points through an 8-0 spurt. Then Wu made a layup and Yu Dong fired a three-pointer, snapping Shanxi's skid. Zhang Xianyuan led another Henan fightback, and after her jumper, Henan turned the game around at 56-54 with 1:57 left in the third quarter, but Shanxi managed to keep a slim advantage at 59-58 into the last period.
Amaju Pinnick, the NFF president, said with the appointment of a new head coach, he's confident that the new technical crew would take the women's team to brand new heights.
An excellent team performance from West Ham saw them rewarded with a surprise 3-0 win away over Leicester City, who had demolished Manchester City 5-2 a week ago.
Rennes had the chance to win all three points in stoppage time but Steven Nzonzi's header hit the post.