McLaren racing director Eric Boullier has vowed to improve the way his Formula 1 team makes strategic decisions, following the blunder that cost Jenson Button in the Hungarian Grand Prix.
Button finished 10th at the Hungaroring, but he was up to second after the first round of pitstops thanks to the timing of the first safety car period for Marcus Ericsson's crash at Turn 3.
McLaren mistakenly gambled on more rain arriving, so fitted Button with a fresh set of intermediate tyres as all its major rivals switched to dry weather rubber.
This meant Button had to make an extra stop under racing conditions to fit slicks, costing him vital track position in the early stages.
The Woking-based squad blamed this strategic error on faulty radar equipment, and Boullier conceded McLaren would have to alter its approach towards weather-based strategy in future races.
"We have to reflect on this and find out why [it happened] because we don't want this to happen again," Boullier told AUTOSPORT.
"I think we need to make it [those decision-making processes] simpler and faster.
"It highlights what we need to change, so it's going to be easier for us to take decisions [in the future]."