BVB Dortmund chief executive Hans-Joachim Watzke admits the club can't compete against Bayern München, who are undefeated this season.
The reigning Bundesliga champions have won 10 of their 11 league matches so far to open up a five-point lead at the top of the standings, with BVB in second and Wolfsburg a further four points behind.
"It makes no sense to talk about chasing down Bayern," Watzke told Bild. "We are only looking at our own performances. We cannot afford to get carried away now.
"Bayern have dropped just two points so far. If they keep this up the entire season, they will spill eight points over the course of the season."
After finishing a disappointing seventh in the league last season, leading to manager Jurgen Klopp's resignation, Dortmund have returned to form this campaign under new boss Thomas Tuchel.
BVB have won their last five matches in all competitions, and face Azerbaijani side Qabala in the Europa League on Thursday before taking on Schalke in the league on Sunday.
"We are on the right track and Thomas Tuchel has already made his mark on the team," Watzke added. "But the season is still long and we must remain hungry."