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From the link:
The need to manage tyre life, detractors say, has led to meaningless overtaking manoeuvres, drivers instructed by faceless engineers in the pits not to fight a rival on fresher tyres because doing so will over-use the tyres, prevent them making their pit stop on the right schedule, negatively affect their overall race time.
Most vocal are world champions Red Bull.
Team principal Christian Horner says the tyres are "too marginal". World champion Sebastian Vettel says "driving is very different to what we knew and what we like". His team-mate Mark Webber adds: "You get five fast laps per weekend. (Car) upgrades are data-driven. Driver feedback is minimal. Tyres are the biggest factor."
Is that plain enough?!