Some argue that the R. Ashwin ‘mankading’ incident was much ado about nothing. In case of a dispute, all umpires and players need to do is read the rules and properly enforce them. There should be no reference to any authority outside of the text; the only thing that matter is the words and what a reasonable person can infer about their meaning. [See, "Originalism" for more.] The worry is that the rules will, as Cricinfo put it, “lose out” to the ‘spirit of the game,’ a set of vague, amorphous principles that no one has ever defined.
Compelling. But this interpretive framework fails before one judicial test: “The Underarm Bowling Hypothetical.” Say you are the captain of a fielding side, and your opposition needs to score six off the last ball to tie. Do you, like Greg Chappell did in a similar situation, instruct your bowler to underarm bowl the ball? [Assume that this technique is permitted by the rules.]
If you say ‘yes,’ fine. You’re a dogmatist. (You’re also going to have deal with a large crowd of angry Kiwis, but that’s another matter.) If you at least admit some hesitation before answering, you see the power of the ‘spirit’ doctrine. So quit talking about the rules as if they’re the only factor to consider. There is something outside the text.