Excerpt: [C]orporate scandals and the stock market's ups and downs have created new challenges for 401(k) plan sponsors and fiduciaries as well. The 2005/2006 edition of Deloitte's Annual 401(k) Benchmarking Survey ... indicates plan sponsors and fiduciaries are rising to these challenges by offering a diverse variety of investment options, regularly evaluating and benchmarking the performance of their plans' investments, and replacing funds that perform poorly.