@DT - I agree with BOC. Most JWs are not hard core loyalists. Most go along with crowd even thought they may not understand everything. They really face two large issues.
1. The pool of men to from which they choose elders is quite small. It is decreasing all the time.
2. Blind obedience and not Bible knowledge are the priority with these men. Russell, Rutherford, Knorr, Franz whether you liked them or not were not afraid to rock the boat. Rocking the boat is strongly discouraged. Maitaining the status quo is paramount. This is creating a pool of elders who do cannot lead and that folks will eventually lose confidence in.
The trend of many to lead normal lives AND APPEAR to be blind followers will continue to accelerate. It used to be that 120 hours a month was "whole-soulded service." Now they are happy if they can get folks to do 30 hours once per year. The lack of strong leadership and lack of numbers for leadership will eventually be the undoing of the organization.