“I want to thank Stephen Ross and Mike Tannenbaum for this tremendous opportunity,” Grier said in a team statement. “I love this organization and feel I am the right man for this job. South Florida is very important to me and my family and I look forward to working with our personnel and coaching staff to add talent to the roster.”
The hiring was first reported by Armando Salguero of the Miami Herald.
The move comes just a day after the Dolphins ownership decided to part ways with general manager Dennis Hickey. Hickey was hired by the team in January of 2014.
Grier has a long history in Miami, being part of the organization the last 16 seasons. He spent five years with the New England Patriots before joining the Dolphins.
The Dolphins will now move their focus to hiring a new head coach. Interim head coach Dan Campbell is expected to get an interview, but the team will likely move in a different direction. Chicago Bears offensive coordinator Adam Gase is expected to be a top candidate for the job.