The issue wasn't them not being able to play lap sweeps or scoops the issue was a basic one just like it was in the US game with Aamir in the super over - they don't have the physical and mental fitness to execute in high pressure situations. You can bring in any player from the domestic circuit but if the team and leadership isn't settled and there isn't a sense of belief then no player, however great, will win you games. Shadab's form doesn't merit selection and Imad doesn't have the fitness for international cricket.