I completely agree with search committee veteran. We have similar numbers this year with our search at an R2 institution (2-2 load with grant/publication expectations). To get your foot in the door you need:
1) Publications. At least several first-authored publications in second-tiered journals in your field of study. Having publications where you are second-author is fine too - but make sure you have first-authored publications. If you have postdoc experience, we expect more publications (and not just in prep). If you are going to spend time at a postdoc, you should be there to publish. The longer you are there, the higher the expectations. Often we calculate the time to PhD and since PhD when looking at a publication record.
2) Experience running your own studies. Publishing off of another researcher's data is fine - but make sure you have run your own study and collected your own data (at least your dissertation) so we know you can actually conduct research.
3) Grant experience. Get a grant, apply for grants, and/or help your advisors with grants. You are going to need a money to do research, show us you have a clue about how to get it.
Things we care less about:
1) Letters of recommendation. Most of the time we do not even read these until we have a long list.
2) TA experience. Having some primary instructor teaching experience under your belt is fine (especially stats/research methods and your primary area of study) but being a TA does not tell us anything.
3) Poster presentations. Having some presentations is expected to stay involved in your field but pages of posters actually makes it worse if you do not have a lot of manuscripts. Obviously you have data, why are you not publishing it? This makes us question your ability and the quality of your research.