The Ethical Implications of Sports Marketing: Examining the Impact of Controversial Events on Reputation

Focus in on the ethical or unethical ways sports have been highlighted throughout the years.
They say there is no such thing as bad marketing (or publicity) can you prove this theory right or wrong? Discuss an individual, team or total league (MLB, NFL etc.)
Some examples, Lance Armstrong in the world of cycling, or deflate-gate and how it black-eyed the NE Patriots, maybe even the steroid scandal of the late 90’s in MLB.