Fox: the go-to network for discredited experts
For some reason, Fox has a preference for the "do as we say not as we did" philosophy on expert pundits.
When FoxNews.com com needed an expert to report on the Commission on the Prevention of Weapons of Mass Destruction, they picked  Judith Miller, whose flawed coverage of overblown WMD claims not only required the New York Times to publish an editors' note about their reporting failures, but also helped lead us into war.
When Fox's Neil Cavuto needed an expert to talk about the BP oil spill disaster, they picked disgraced former FEMA director Michael "heckuva job" Brown, who, thanks to his efforts during Hurricane Katrina, really knows how not to handle disaster relief in the Gulf Coast. Brown notably used his platform to repeatedly suggest  that the Obama administration intentionally let the oil spill worsen so they could "shut down" offshore drilling.
So today, when Fox & Friends needed an expert to discuss the Justice Department's handling of alleged Times Square bomber Faisal Shahzad, there was really one person they could turn to:
Who else but disgraced former Attorney General Alberto Gonzales -- whose "evasive answers to Congress " on the allegedly political firings of U.S. attorneys led to the appointment of a special counsel to determine whether "any criminal offense was committed" -- would be the most appropriate person to discuss supposed failures in the Justice Department?