Can the defense carry its fair share of the load?
The Chiefs overhauled their defense by changing the coaching staff, installing a 4-3 base system and acquiring as many as seven new starters, including safety Tyrann Mathieu and defensive end Frank Clark. Will this be enough to get the Chiefs to their first Super Bowl in 50 years? -- Adam Teicher
Kansas City Chiefs Weak-Side LB: Lee vs. O’Daniel vs. Wilson
Kansas City Chiefs general manager Brett Veach jumped on the opportunity to upgrade the linebacker position in mid-May, acquiring Darron Lee from the New York Jets for a 2020 sixth-round pick.