The Eagles haven't said that they won't trade Donovan McNabb and there are a host of teams looking for an upgrade at quarterback this offseason. So why haven't a handful of clubs called Philadelphia to inquire about McNabb's services? Peter King of Sports Illustrated, who spoke with a coach that is in need of a quarterback, writes that the fact that McNabb is in the final year of his contract, that the Eagles will want a high draft pick and his age, 33, are all factors.