First of all, do you know who your Unit Commissioner is? He/she is the individual who should be able to assist you with your frustrations. A unit commissioners job is to work with the committee and individuals to assist with questions/ concerns and issues. They don't know it all but have the resources to pull from to assist you.
Communication is always an issue in any Pack whether its a great pack or one struggling. I've seen both and even in my own we struggle too. But it's a two way street and the committee needs to understand your frustrations and hopefully want to work with you to make things right. Leaders and boys and retention are always very important in every pack.
If organization is the issue and you can't commit more time to help, then do you have any other parents in your den, which may be willing to assist? More organized hands make the job easier.
Maybe suggest to the committee to break up the jobs into smaller task and get more involved.
Hope this helps.