Maccabi increased the gap to 75-60 with seven minutes to go, securing the club's first Euroleague win of the season.
"We have to look at what we are missing in the squad: we know that the club has economic problems, like every club, but there are one or two positions in the team where we have to improve. We are working to have another option at '9' and the club is working the maximum to sign one," added the coach.
Shenhua will play the next stage against city rivals SIPG, who have already qualified in the top spot of Suzhou Division.
But overheated discussions about the future of the 55-year-old and the club's risky cost-saving policy might deliver some glimpses into the Bavarians agitated mood ahead of the German Supercup against Borussia Dortmund this Wednesday evening.
Aside from his qualities, Rangnick has maintained a close relationship with Schalke's leading board member for the team Jochen Schneider.
"I think it's a great variety shot, the dropshot. I think it's important tactically to have it and to use it at the right time so that you can keep your opponent always guessing what the next shot is," said the top seed, who is seeking his 18th Grand Slam title at Paris.
Dortmund started an onslaught on Augsburg's goal but Gikiewicz staged a faultless performance and drove the visitors to desperation with his saves in the closing stages.
The former world No. 1 is set to face a tougher challenge in the second round against 2017 champion Jelena Ostapenko of Latvia, who knocked out American Madison Brengle 6-2, 6-1.
Ronald Koeman saw his reign as Barca coach get off to a flying start on Sunday when Ansu Fati led them to an easy 4-0 win at home to Villarreal, with all four goals coming before the break.
Shijiazhuang will go to the Dalian division, where the relegation competition is held. Their first opponent is Dalian Pro, coached by Spaniard Rafael Benitez.
"I really wanted to give an effort here. It's my Achilles that didn't have enough to properly heal after the [US] Open. I was able to get it somewhat better, but just looking long-term in this tournament, will I be able to get through enough matches? For me, I don't think I could," said the three-time Roland Garros champion.