Pushed at last into spending £26 million ($50.4 million) on five new players right at the end of the transfer window, Wenger was able to take some consolation from the debuts of three of them on Saturday.
Mikel Arteta was the best of the trio, suggesting from the start that he might rediscover the quality absent from his final season at Everton.
Yossi Benayoun joined him in midfield for the last half an hour, offering greater energy and dynamism than Andrei Arshavin, which is not hard.
Yet the infuriating Arshavin had won the game, scoring from close to the byline after Michael Vorm's throw-out hit his right-back Angel Rangel.
Arteta and Benayoun are still not Cesc Fabregas and Samir Nasri, so Arsenal will need Jack Wilshere and Ramsey to continue their development at a rapid rate when they are reunited after the former's injury.
The third newcomer on show, Germany's lanky central defender Per Mertesacker, mostly acquitted himself well and should form an improved partnership with another current injury victim, Thomas Vermaelen.
"He's calm and composed and he talks and communicates," Wenger said. "When a German communicates, you listen."
Mertesacker's tips may be handy. He has already said of Dortmund: "They do a good job passing the ball ... it will be a very difficult match for us."
As for Swansea's Jacks, if they are to be as good as their Premier League masters, they must start scoring some goals.
- Independent