Max Verstappen has endured one of the most frustrating spells of his Formula 1 career in recent months. He arrived at the Singapore Grand Prix in the midst of a seven-race winless drought. This is hardly unprecedented for the Dutchman. He started his career in a midfield car at Toro Rosso and he had to contend with Mercedes’ prolonged monopoly after he joined Red Bull. But there’s something uniquely difficult about a dominant driver surrendering his dominance. Lewis Hamilton, winner of six titles in seven years, has demonstrated that point. Hamilton has only won two races in the last three sea…