I also agree with idig beets. A big part of CSA is sharing the risk with the farmer.
Being a CSA member is not like being a member if a buying club that buys and resells produce and other items they buy; this kind of deal doesn't require the consumer to share the risk as there isn't much because there is no farm involved.
If your CSA is a single farm/farmer run CSA it may be that their growing conditions are not the best right now. If your grower is sending out a newsletter or any other communications I certainly hope you read everything the CSA sends to you so you know what's going on. If they are not communication with the members regularly than that is a problem.
I also hope you are telling the farmer that you are not happy as it is impossible for the farmer to make it up to you if he/she doesn't know there is a problem (don't expect people to read your mind). And I certainly hope you did so before trashing them on a public forum