TRENT BRIDGE — England may be in a state of crisis after a tumultuous few weeks that ended with Ben Stokes retiring from international cricket midway through a Test against New Zealand at Trent Bridge. Yet back at the same venue a week and a half later, the T20 team underlined they are perhaps the best in the world right now after their 125-run mauling of India completed an 18th victory in their last 21 completed matches in the format. This is in stark contrast to England’s form in Tests, where they have won just two in nine, and ODIs, where they have won six and lost 12 of their past 18 games. If they can win the final two matches of this series at Bristol on Thursday and Southampton on Saturday, they will overtake India, who have won the past two T20 World Cups, at the top of the world r