Studesville returns as the team's running backs coach after he helped the Dolphins improve from 24th to ninth in the NFL with 4.68 yards per carry in 2018, his first season with the team. Studesville has 22 years of NFL coaching experience, including 18 at the running backs position. He has been on the coaching staffs of two conference championship teams (2013 and 2015) and won Super Bowl 50 with the Denver Broncos.

Grizzard returns to Miami for his third season with the Dolphins, having served as an offensive quality control coach in each of the past two seasons (2017-18). In 2018, he helped the Dolphins offense improve from 24th to ninth in the NFL with a 4.68 yards per carry average.

Lombardi spent the past two seasons (2017-18) at Baylor, where he served as an offensive quality control coach. In 2018, the Bears improved by six wins and won the Texas Bowl. He also spent three years at Louisville as a special teams quality control coach (2014) and graduate assistant working with tight ends (2015-16), where he helped tight end Cole Hikutini lead the team with 50 receptions and earn second-team All-ACC honors as a senior in 2016.