A few days ago, Test cricket minnows West Indies (yes, that’s how the willow has crumbled for the once-invincibles) and Bangladesh registered unbelievable but brilliant wins over their stronger rivals England and Australia. For connoisseurs of the five-day format, they provided enough occasions for sharp intakes of breath, followed by their slow, luxuriant release over the rest of a session. The wins, achieved against great odds, deserved to be celebrated. But, after the initial exhilaration, it also led many to ask if they were merely a flash in the pan. West Indies may have improbably chased down a stiff English fourth innings score at Headingley, but they certainly are not the dreaded Test team of 1984 who imperiously chewed up a target of 342 in 66 overs flat at Lord’s against the same team. Bangladesh are comparatively new to Test cricket—17 years old—and are better at the limited overs format.