Helmut Marko is known as one of the most outspoken figures in the Formula 1 paddock. The Red Bull executive director frequently makes headlines with his typically blunt remarks. For much of this year, he has publicly applied pressure to Sergio Perez and Daniel Ricciardo. Perez has staved off the threat of losing his seat during the summer break, but he will be under intense scrutiny again from the Dutch Grand Prix onwards. Ricciardo was one of the drivers in contention to replace the Mexican if the Red Bull bosses decided to make a change. But at the same, his position on the grid has been at …