Url Scaramanga from outofur.com discusses a possible cause of the decline of the Crystal Cathedral – nepotism:
The post mortem on the Crystal Cathedral continues. The iconic southern California megachurch pastored by Robert H. Schuller once represented the innovative and market-savvy dexterity of American Christianity. Schuller started his church at a drive-in movie theater, allowing visitors to stay comfortably inside their cars. Then he utilized television with the “Hour of Power” ministry broadcast. Its success allowed him to build one of the largest churches in the country.