One of life’s enduring mysteries has been the NFL’s continued employment of Dr. Elliot Pellman, a Guadalajara-educated rheumatologist with questionable qualifications, whose greatest career achievement is a years-long campaign to conceal and downplay the effects of concussions on NFL players. This is a man who, despite having no experience or expertise in brain research, helped author 16 papers that waved off the dangers of sending concussed players back into the game.