Other than having no bullpen, no starting pitchers that can go deep into the game, and no infield defense, no hitting at all after the top three, they are doing just fine.
A serious thought: the hitters fold under pressure. By pressure I mean when they have runners on the bases. That always puts more pressure on a batter than if the bases are empty. It's far more mentally tense when you are trying hard to bring in those on the basepaths. Akin to more pressure on a FG kicker attempting to kick a 30 yd FG to win at the end as opposed to same kicker attempting the same distance FG in the first quarter.