Is Duckworth-Lewis Outdated?

England have struggled to find the right formula in one-day cricket for a number of years. Out in the Caribbean Andy Flower and co seemed to have finally found the right mix of big hitting and innovative shot making.

Posting 191-5 in their 20 overs, England seem destined to get off to a winning start. However as Chris Gayle and Shivnarine Chanderpaul began their reply the heavens opened and the West Indies were set a new target of 30 runs from 22 deliveries - which was achieved with some ease. 

This revised target was worked out courtesy of Duckworth-Lewis, a method that no one seems to understand.Should a new system be introduced into Twenty20 or does it simply need to be revised and made easier to undertand?