Goodwin began his career as an assistant coach at Lanett High School for two years, starting in 1985. He then accepted the positions of head football coach and athletic director at Marion County High School in 1987 and stayed there for six seasons. In 1993 he became the head football coach and athletic director at Lineville High School for six years, where his teams played in the state championship game in 1996 and 1998. From 1999 to 2008, he was head coach and athletic director at Demopolis High School where his team won the state championship in 2004 with a perfect 15-0 record. In four seasons (2007–2010) as both head coach and athletic director for Russellville High School in Franklin County, he amassed a 46-9 record and made it to the playoffs every season.
In January 2011, Goodwin was hired by Homewood City Schools to replace Dickey Wright, who resigned as head football coach at the end of the 2010 season. Coming into the job, he had an overall record of 211-81 as head coach. Homewood, often see-sawing between Classes 5A and 6A in the AHSAA system, was playing in Class 6A at the time he was hired. In his first year the Patriots had a record of 5-5 compared to 6-4 the previous season. In 2012, however, the team returned to Class 5A and amassed a record of 9-2, won the region title, and went to the playoffs. In 2013 their record was 9-3 and the team again took the region title and this time advanced to the second round playoff games. Overall Goodwin had a 23-10 record at Homewood.
On February 25, 2014, Goowin said he was informed by Homewood High principal Zack Barnes that although he was "a very good football coach" he "wasn't a good fit for Homewood" and given an opportunity to resign. Goodwin refused to do so and was let go. Ben Berguson was appointed as interim coach. Goodwin plans to coach football in the state for another nine years.
|Head Football Coach of Homewood High School
- "Homewood Announces New Head Football Coach." (January 18, 2011). Homewood City Schools. Accessed February 26, 2014.
- Sentell, Jeff. (February 25, 2014). "Homewood has asked 234-game winner Doug Goodwin to resign as head football coach." AL.com. Accessed February 26, 2014.
- "Alabama High School Football Head Coaches: Doug Goodwin." (n.d.). Alabama High School Football Historical Society. Accessed February 26, 2014.
- Sentell, Jeff. (March 18, 2014). "Homewood moves quickly to name assistant Ben Berguson as its new head football coach." AL.com. Accessed March 21, 2014.