You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Super_Bowl_50

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 replaced by Kubiak in Super Bowl XXIV?

Elway