Free agency is time of comings and goings for NFL teams. Underperformers and poor fits typically leave, ideally replaced by higher performers and those who appear to be better fits. Coaching changes,

Dallas has also hired Nick Sorenson to serve as special teams coordinator under new head coach Brian Schottenheimer.

Considered the front-runner for the job when Brian Schottenheimer was hired as Dallas Cowboys head coach, Matt Eberflus is now the team's defensive coordinator, the team announced Tuesday. Eberflus served as the head coach of the Chicago Bears for nearly three seasons before he was fired on Nov.