This is to suggest you are discouraged. The chair of your committee has posted customer service on its agenda. So go with that. Rather than switch its focus to service to internal customers, work with the chair's target which most probably is external customers. Seek how one or two work groups that deal with customers might determine how they might meet customer needs more quickly, more accurately, more cheaply.
Communication is vital in learning if customers needs are being met quickly, accurately, cheaply.
Customer focus groups can help you learn what they need, what are their problems, and what are their suggestions for cutting costs, for just in time delivery of goods and service, and what really makes them happy. Committees do not become enthusiastic until one or two within them are can do members. And remember that committees that are not natural work groups have the job of selling what they dream up. If their proposals are not seen as really solving a hurt or making the organization look good, they won't sell. Finally, don't become discouraged if your committee is killed.