Red Bull director Helmut Marko has hinted that the team’s run of three straight F1 drivers’ titles is partly down to a rival team wasting their opportunity. Max Verstappen has sealed a hat-trick of championships for the Bulls at the end of a seven-year spell of Mercedes dominance. But Marko thinks things could have been different if a competitor had made the most of their chance. Verstappen beat Mercedes driver Lewis Hamilton to the 2021 title by eight points after a dramatic and controversial finale in Abu Dhabi. The year after, he finished 146 points ahead of Ferrari driver Charles Leclerc i…