1. It will give England something new to tackle
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England, right on the back of their stupendous come-from-behind win in the third Test, have momentum on their side. Knowing that Warner will walk out to open the Australian innings with Usman Khawaja in the fourth Test at Old Trafford, they will not have anything new to plan for. Skipper Ben Stokes will be more than happy to continue bringing Broad on and ask him to diffuse the situation.
However, if Australia bring someone else instead of Warner, England will have to plan differently. What's more, this will also force England to respond to the new situation in a distinctive manner. Also, if Australia spring this surprise upon England on the morning of the first day's play, it will be interesting to note how the latter bring themselves to adjust to the situation immediately. They will have to work a way out to breach into the new opener's defences while letting the other batsmen remain scot-free. This might end up playing into the hands of the tourists, giving them a big advantage.
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