Individual enthusiasm.
head coaches
a world cup style format for the cup each season, IE a round robin stage followed by a knockout phase. Change prize money to an even split of the pie for the first stage, proceed as normal for the 2nd. the only drawback is that everything would have to go neutral court, which I think it should anyway, the big advantages would be increased interest and a more cash in everyones coffers.
skewer game shape to be more of a factor later in the season, perhaps evening jettisoning it for the group stage, then have it kick in.