Dallas head coach Wade Phillips has been informed that Jason Garrett will turn down head coaching opportunities with the Atlanta Falcons and Baltimore Ravens and remain as the offensive coordinator for the Cowboys, sources told ESPN's Ed Werder. A source credits owner Jerry Jones with convincing Garrett to remain in Dallas: "This is huge because changing systems right now would have been really tough on Tony [Romo]." Garrett has informed the Ravens and Falcons of his decision to stay in Dallas. The Ravens are now turning their attention to Eagles secondary coach John Harbaugh, who is expected to get his second interview Thursday.