However, he branded his side's first-half display their worst of the season. Bakkal, on loan from PSV Eindhoven, scored the equaliser as the Rotterdammers came from a goal down to claim victory and maintain their unbeaten start to the Eredivisie campaign. "Bakkal played very well," Koeman said on the club's official website. "He was one of the few players who was in the game in the first half. He made the right choices and scored an important goal. "His experience, which includes Champions League level, is very important to this team." The attacking midfielder was delighted with his start for his new club. "It was an important goal," he said. "Gradually we got better as the game went on and that gives us confidence for the future." Feyenoord needed Karim El Ahmadi's 60th-minute strike and a late John Guidetti penalty to seal the victory after a lacklustre first-half showing. "It was our worst half of the season," Koeman added. "We were far too sloppy and that helped NAC get into the game. "Luckily in the second half I had a totally different view of Feyenoord. "In the second half we played the way I want to see. We dominated the ball and I think deserved the victory on the basis of the second half."