If Marsh is released from the test squad like McSweeney was when dropped, he could potentially replace Hurst batting at the top of the order for the Scorchers. Just found out that Finn Allen can also keep wicket so no need for Hurst :-
Finn Allen player profile
An opening batter who can also keep wicket, Finn Allen is arguably the hardest hitter of a cricket ball in New Zealand. His ability to go hard from ball one, and keep going hard, makes him a model opener in T20 cricket