Task: Question Answering
Input (English): Context: It was a great sign of things to come , which certainly proved true after the release of the new album . Hopefully they stick to their roots , and do n't let all of this recent success blow up their heads . I quite like their current sound , and do n't want to see that change with the possibility of over - production and poor songwriting . Anyway , enjoy their performance of " I ' m Not Gon na Teach Your Boyfriend ... " which aired last night . 
Question: Why is the narrator so worried about the band 's output ?
Output (English): The narrator feels successful bands go downhill .