Mississippi State football coach Mike Leach dies at 61.   Leach, who was in his third season with the Bulldogs, entered the University of Mississippi Medical Center in Jackson, Mississippi, on Sunday following complications from a heart condition, the school announced Tuesday morning.    Leach, known for his prolific Air Raid offenses, is 158-107 in 21 seasons as a head coach at Texas Tech, Washington State and Mississippi State.  📷: Mark J. Rebilas, USA TODAY Sports @imagncontent #mikeleach #mississippistate #football #ncaafootball #mississippistatefootball