Logan Sargeant is on the hunt for his next step after Williams dropped the American from their Formula 1 line-up and promoted Franco Colapinto for the rest of the year. A continued run of disappointment reached its peak at Zandvoort when Sargeant crashed in practice for the Dutch Grand Prix. It was a mistake entirely of the 23-year-old’s making when he tried to ride the kerb for too long and touched the wet grass, causing a high-speed shunt. With Sargeant also still to score a point this season, and even out of a drive after this year as Carlos Sainz will join Williams from Ferrari, team princ…