I was playing around with the rankings calculator on the ICC website and it throws up a strange result
International Cricket Council - Match Zone - Test Predictor
If Eng beat Bangladesh 2-0 in Eng in their upcoming 2 test series, it does nothing for their rating - no real surprise there as it's no great achievement
However, if SA beats WI 2-0 away, then the same result occurs
In fact, if SA "only" wins 1-0, they go backwards
Surely SA should get some credit for what would be a reasonable result especially if the WI serves up the batting paradises they did for the last Eng series?