Decision Review System (DRS) has been amidst controversy since its inception. What was designed to be an improvement in the game has turned out to be an unnecessary complication, creating some divide between the cricket fraternity.
Implemented to reduce howlers
DRS was introduced with the objective of reducing number of howlers meted out by umpires. It was born out of the womb of technology to erase the faults of human judgement. As time went by, DRS has been the cause of distress on more occasions than an agent to allay it. It has made a beautiful sport into a needless muddle of technology and numbers.
DRS may have its own advantages like the fact that it can potentially help in improving the accuracy of decisions. With a bit of mathematics, we can show that
P(c) = P(u) + P(u') * P(r) = 0.8 + (0.2*0.9) = 0.98, where
P(c) = probability of a correct decision given by umpire using DRS
P(u) = probability that umpire makes a correct...