Question: The 2008 Denver Broncos Season was the 25th under the ownership of a man who stepped down in 2014 due to what disease?
Sentence (from "Pat Bowlen"): He served as the Broncos CEO from his purchase of the club in 1984 until July 2014, when he stepped down as Broncos' CEO due to the onset and progression of Alzheimer's disease.
Relevant evidence: Yes