This season tyres showed low-performance with high-degradation last two races many drivers are struggled too.
But F1 supremo supporting this season tyre compounds and he commended that take care the tyres with use drivers brains.
"The easiest thing for Pirelli would be to produce tyres that you put on at the first race of the season and take off at the last. That would be easy, easy," Ecclestone told Formula1.com.
"I asked Pirelli to make tyres that would not complete 50 per cent of a race - and that's what they did. In the times when Niki [Lauda] was racing his biggest concern was looking after the gearbox and the brakes - not the tyres.
"Then we got away from that and the drivers didn't have to think about anything. Now they have to use their brains and start thinking about how to win races.”
