Phillips has not coached in the NFL since the 2013 season, when he coached the Texans' final three games following the firing of Gary Kubiak. Kubiak was hired last week to become the head coach of the Broncos after spending one season as the Baltimore Ravens' offensive coordinator.
Denver is seeking to replace Jack Del Rio, who left to become the Oakland Raiders head coach.
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He has an 82-64 record with two division titles and a 1-5 playoff mark in 12 years as a head coach.
- Scooby Axson