context: With Rivera having been a linebacker with the Chicago Bears in Super Bowl XX, and Kubiak replacing Elway at the end of the Broncos' defeats in Super Bowls XXI and XXIV, this will be the first Super Bowl in which both head coaches played in the game themselves.
question: Who was the Panthers head coach for the 2015 season?
answers.text: Rivera Rivera Rivera
content_segment_text: With Rivera having been a linebacker with the Chicago Bears in Super Bowl XX, and Kubiak replacing Elway at the end of the Broncos' defeats in Super Bowls XXI and XXIV, this will be the first Super Bowl in which both head coaches played in the game themselves.
content_segment_normalized_text: With Rivera having been a linebacker with the Chicago Bears in Super Bowl XX, and Kubiak replacing Elway at the end of the Broncos' defeats in Super Bowls XXI and XXIV, this will be the first Super Bowl in which both head coaches played in the game themselves.
question_normalized_text: Who was the Panthers head coach for the twenty fifteen season?