We often use multiple methods, and the audit trail technique now recommended for case study use was itself adopted from such auditing procedures as workpapers and referencing, which are standard practice with GAO.
We use multiple methods and follow GAO standard practices.
Praise goes to Kirstie Alley, who plays an aging ex-model now in the lingerie  Less frenetic than Lucy, more mature than Mary (Richard Corliss, Time ). The Washington Post 's Tom Shales dissents, calling Alley unwatchably neurotic and in a virtually perpetual feverish tizzy.