Leadership Network is an excellent ministry established by Bob Buford. It's mission is to: identify, connect and help high-capacity Christian leaders multiply their impact. They provide a wealth of resources for churches and leaders through their web site, publications, blogs and e-newsletters.
Recently Leadership Network conducted an extensive survey seeking to gain insights into the ministry roles of Senior Pastors of larger churches and of Executive Ministers.
Any questions, feel free to post them in the Comments section.