Michael Lewis, the guy who wrote "Moneyball", wrote this book. Very good, very quick read.
Two stories in the book that intertwine.
It starts by breaking down the play that changed modern football, LT crippling Joe Theismann and becoming the prototypical rush linebacker that teams have searched for for 20+ years.
Naturally, teams had to find to a blind side tackle to negate the LT-type.
Doing so (starting with Anthony Munoz) changed the finances of football forever.
It weaves in the true story of Michael Oher, a 6'5", 350lb, fast, athletic black kid from Memphis's worst neighborhood. The kid is homeless and is ultimately adopted by a rich, white family and he soon becomes the nation's most sought after high school football player. Never mind he can barely read, write or speak.
Very good book on many levels. You'll get a kick out of the college coaches trying to understand how this kid lives with these rich white folks (including their very hot 18 yr old daughter), at the NCAA investigator who wonders "why?" he lives with these rich white folks and the fact that Nick Saban is apparently well versed in southern decorating styles and techniques.
Pick it up if you get a chance.