Put another way, investors must do their own homework instead of simply relying on the word of credit-rating agencies. It seems to me that many of these desired outcomes will be accomplished through natural market forces responding to these events.
For example, when investors demand much higher rates of return for opaque products, there will be a strong incentive for vendors to provide products that are more transparent. Similarly, credit-rating agencies will likely find it to their advantage to explain more clearly the rationale for, and limitations of, their ratings for highly structured products.