"Prudence is the most important [of ERISA's fiduciary duties] because it underpins the fulfillment of the other key ERISA duties. Therefore ... [it] carries the greatest amount of risk relative to the other duties.... [A] plan sponsor's actions will be evaluated by the process used to make the decision (procedural prudence) and the result of the decision (substantive prudence). Anyone can follow a 'process', but a 'prudent process' requires looking at the right information in the right way."  MORE >>