Task: Wrong Candidate Generation
Input (English): Context: It 's keeping opponents from light up the scoreboard that 's been the problem in Cincinnati . The Bengals have made a collective effort to improve their defense in the past three drafts , using their last three first round picks on that side of the ball . In 2006 , Cincy selected South Carolina corner Jonathan Joseph with their first round pick and in 2007 the Bengals took another defensive back with their first pick in Michigan 's Leon Hall . This past draft , the team tabbed USC outside linebacker Keith Rivers in the first round . 
Question: What is the reason the Bengals keep losing ? 
Correct Answer: Their defense needs improving .
Output (English): Leon Hall stayed at Michigan .