Marko admits Red Bull's problems are 'due to departure of key people'

Not only on the track, but certainly off it, it has been a turbulent year for Red Bull Racing. Influential people such as Adrian Newey (to Aston Martin) and Jonathan Wheatley (to Sauber/Audi) have already indicated their intention to leave. Moreover, the affair with Christian Horner played centre stage for a long time; with the team boss accused of inappropriate behaviour by a female colleague.