Celtic boss Ronny Deila says keeping his best players will take priority over acquisitions in the transfer window.
Chelsea striker Fernando Torres is understood to be set for a return to Atletico Madrid, according to Sky sources.
Rangers said Traynor, who left his role with the Daily Record on Sunday and has ceased working as a BBC Radio Scotland presenter, would oversee the development of all of the club's media platforms from early next year.
A statement read: "James joins Rangers following a distinguished journalistic career with The Herald, Express and Daily Record newspapers as well as being a presenter with the BBC.
"In his role at Ibrox, James will be supported by the Rangers Media editorial team, the press office and external media advisers, Media House."