You go into win every game. As pards says - it's only about the next game.
At the end of the day these are professional football league players, they should be able to cope with Saturday > Tuesday games. I say go all out to win it with our best avaliable team, losing cup games isn't going to improve the confidence of the players. We should be good enough to cope with the demands. (+ it's our trophy, we want to retain it!!!)