San Francisco Spiders In 1996, the professional hockey team at Cow Palace failed after a year due to poor attendance and arena difficulties.
Pete Rose In 1989, Pete Rose, the all-time leader with 4256 hits was banned from baseball for gambling on games while managing the Reds.
Coke II In 1990, Coke II was reformulated due to losing market share to diet soft drinks and non-cola drinks.