Will Rich Gannon be inducted into the hall of fame?
Not even a small chance. Gannon was a late bloomer in the NFL.
Although he was very good near the end of his career in Oakland, he
spent most of his career as a journeyman backup. He really only
played at a high level for 4 years.
http://www.pro-football-reference.com/players/G/GannRi00.htm