Christian Horner admitted to making sweeping changes at Red Bull as he "just wouldn't accept" the mindsets of some of the team's staff.
These days, Red Bull is the dominant team in the Formula 1 world. And the same was true between 2010 and 2013 when the title was won in four consecutive seasons.
For all that success, though, there have been plenty of lean periods. Before any of it, there was a lot of work put in to transform the ailing Jaguar team which was bought by the energy drinks giant at the end of 2004.
