punting in roto is OK, but just not this early. if after 2-3 months you're doing poorly in something like SVs, SBs or Holds, there's no useaccumulating stats to stay in last or even second or third to last. especially for saves, deal one of your closers to someone in the middle of the pack in that category. that will generally create a cascading effect where you can extract beter value out of the next closer you deal b/c people with a shot at doing well in saves will pay to stay competetive in a skewed market. then just go pick up some stud RPs for ratios.
in your case the realtive value of pickiing up extra starters midseason depends on your IP limit and if there are any starters left on the WW that are worth a hoot.