Vivek didn't grow up playing basketball, and doesn't know the way it is supposed to be played. So when he starts a team with his daughter he uses full-court press, where you put pressure on the other team the whole time they have the ball, even before they pass it in. It takes a lot of energy, and that is why many teams don't use it. But he does use it, to great effect, and his team of girls who don't have much basketball ability make it to the finals.
There is a difference between playing the game how it is supposed to be played, how everybody thinks it should be played, and playing it how you, with your limited abilities, can play it best. And win.