Audi needs to show decisiveness: Will the team go for past glory or youth?

It was a hefty setback for Audi. For months, the future F1 team had bet on the arrival of Carlos Sainz, but after much deliberation, the Spaniard opted for an adventure at Williams. Plan C must now come into effect (as Plan B with Tsunoda is also impossible) and the chances are this means continuing with Valtteri Bottas. Or will the current Stake F1 opt for a young star after all and keep an eye on the future?