Horner exit: What led to Red Bull's biggest F1 bombshell yet

Christian Horner's exit as Red Bull Racing CEO and team principal means the Formula 1 team's years of growing crises have led to its biggest bombshell yet.Having led Red Bull for 20 years from its very first race in F1, Horner has been "released from his operational duties", and immediately replaced by Laurent Mekies, formerly the boss of Red Bull’s second team Racing Bulls.A massive Red Bull F1 e...