Dolphins interview Anthony Lynn on Wednesday

The Miami Dolphins completed their formal interview with Buffalo Bills running backs coach Anthony Lynn on Wednesday.

Lynn is the fourth head coaching candidate the Dolphins interviewed this week. He joins Detroit Lions defensive coordinator Teryl Austin and former longtime head coaches Mike Shananhan and Mike Smith.

Dolphins Vice President Mike Tannenbaum said they will turn over every rock during this coaching search. Four years ago the team selected Joe Philbin, who struggled with a 24-28 record and was fired in Week 5 of the regular season.