There have been four head coaches of the Houston Texans, a professional American football team based in Houston, Texas, United States. The Texans play in the South Division of the American Football Conference (AFC) in the National Football League (NFL).
The Texans are a newly established team.
We don't know for how long they have been established - them having had four coaches doesn't tell us - each coach might only have stayed for a year, or they could have stayed for decades.