To begin with, let's understand why the cricketing world is so fascinated by all-rounders.
In layman terms, you have a wicket-keeper who bats a bit and you have five batsmen and five bowlers. In effect, you have six people who can bat and five people who can bowl as their primary skill, out of the 11 players in the team. Now, if a couple of the batsmen can bowl a bit and a couple of bowlers can bat a bit, it gives immense balance to the side as the captain then has more options at his disposal.
Throughout the World T20, Afghanistan promised to pull off an upset. They did get the better of Zimbabwe in the qualifiers, but it wasn’t really an upset as Afghanistan have proved to be a better side than them in recent times