The Cincinnati Bengals' front office heard criticism from the media and the general public about their extreme spending on the offensive side of the ball and a lack of attention to the team's defense. Entering the offseason, Cincinnati focused heavily on bolstering its defense, signing defensive lineman Jonathan Allen, EDGE rusher Boye Mafe, and safety Bryan Cook to lucrative free-agent deals. The team also traded its No. 10 overall selection to the New York Giants in a deal that sent Dexter Lawrence to Cincinnati. From there, Cincinnati made both Day 2 NFL Draft picks on the defensive side of the ball. While the Bengals have made significant changes on the defensive side of the ball, the middle linebacker position has remained in question all offseason and will be a focus heading into training camp, as CBS Sports' Tyler Sullivan wrote on Monday. Who Could Solve Middle Linebacker Problem? Cincinnati Bengals linebacker Demetrius Knight Jr.…