Well as an agressive manager, I'd like to try to win all the matches, however that's obviously not the best strategy. I'd say try to win the games where there's a good chance, and if we face an opponent which we have no chance of winning, then just throw the game away (given that PD is not to be seen as a problem). But anyway, 4 wins out of 6 sounds pretty good, and 5 wins out of 6 would even please me and everybody more.
But I was wondering, how does the enthusiasm work in the NT games? If it is carried over to the next stage etc, then losing some games using TIE just to bring up the enthusiasm sounds good to me, given that we're already in the position to compete in the next stage.