Assistant boss Steve Bould admitted he had "a bit of a headache" after stepping into the Arsenal dugout for Tuesday's Champions League opener in Montpellier which saw the Gunners battle back to win 2-1.
Manager Arsene Wenger was serving the first of his three-game touchline UEFA ban - and would have been fuming from the stands after Younes Belhanda slotted home a penalty when captain Thomas Vermaelen fouled him. But two quick goals from Lukas Podolski and Gervinho ensured the Gunners made a winning start in Europe.
Bould said afterwards: "I am not sure I enjoyed it. I have got a headache and a half. It is tough, a different pressure than I have been used to taking the Under-18s - but we won and we had a great result."
Bould felt it was another encouraging display from the squad.
"It was difficult. I thought we were excellent in the first half - we kept the ball and kept the crowd quiet," he said. "We looked a little bit tired in the second half, because it was very humid and the crowd got behind them. It is quite an intimidating place to come and play so we are glad to get the result.
"We have had a decent start to the season and we have kept the run going so it's important all round, for the whole season. We have got great team spirit and I think that was evident. Everybody is digging in and things are looking okay."
Podolski netted his third goal in as many games, with a neat finish after quick passing on the edge of the penalty area.
Bould said: "Podolski has made a real impact. I have to say I've not seen many finishers as good as him - ever, right foot, left foot, they always go in at 100 miles per hour in training. He is a good trainer, a good boy and has really added something this year."
Montpellier coach Rene Girard felt his team could take some positives out of their Champions League debut. He said: "I have some regrets but also some satisfaction. Maybe we were a bit too shy in the first half, then looked more determined. We had a few chances to equalise, but at this level when you make some mistakes, you will pay for it.
"We can be proud, because apart from these two minutes we managed to play well against this top European team like Arsenal, so there can also be some positives from this performance."