After a promising start, Delhi Capitals are meandering towards the familiar territory of irrelevance as the IPL season enters its business end. After a win over Rajasthan Royals, the home game against Chennai Super Kings was a must-win encounter. But the timid manner of their eight-wicket defeat, combined with their poor net run rate, means that a playoff spot is now a long shot. CSK , on the other hand, kept the feel-good vibes going with a third successive win and they had their ‘Chetta’ to thank again to guide them to what was a comfortable win in the end. There’s still little room for error but the five-time champions are trending the right way. Sanju is the man again Getting a 100 in around 40 balls is good for a batter’s highlight reel. But once in a while, when the pitch is not an ally, one has to find different ways to skin a cat.…