two things:
1) it's not easy for a slumping team to bust out of it when in the span of week, you face oswalt, clemens, smoltz, and hudson. so it's not like we're sucking against all these pitchers we should be mashing. granted, we haven't hit against crappy pitchers either, but we've faced some amazing pitchers in the past week.
2) as much as we would like to think we can easily get rid of guzman, he is signed to a 4 year deal, and until we get an owner, i doubt we have the latitude to DFA a player signed to guzman's contract.