Matt Eberflus undaunted by ghosts of Halas Hall past

Bears coach Matt Eberflus (left, talking with running back David Montgomery) is in his first year as a head coach at any level.When newly hired general manager Ryan Poles introduced Matt Eberflus as the 17th head coach of the Bears at the news conference held for the two of them in January, the room went silent — just the sound of camera shutters — as Eberflus stepped to the dais in the George ‘‘Mugs’’ Halas Auditorium.

‘‘No applause, huh?’’ Eberflus said.

Not here. As he walked to the stage, Eberflus entered a new world. He wasn’t being named the defensive coordinator at Missouri, the linebackers coach of the Cowboys or the defensive coordinator of the Colts. This was the biggest job of his…