I think this thread should start with what you believe the responsibilites of this coach will be.
I was hired by my current team’s school (5686, Ethel Walker) as a coach to oversee the construction and competition aspects of the team. Although my duties have expanded now, the goal is to have someone within the school itself to aid in administrative work so I can focus on the robot. I work full time and then run the team on top of this, so my time is extremely stretched as lead mentor.
I recommend putting together a set of requirements and qualifications with your school for a coach - including experience in running teams, hours that will be required, and I recommend listing the team’s current resources (money, machining, and mentors).
Disseminate the job posting via your regional directors, regional facebook pages, and here on CD.
As someone who was willing to join a new team with very little knowledge of said team, I can say that you will rarely find someone willing to do this. Feel free to reach out to me if you have questions.
Biggest piece of advice - do not sugarcoat how much effort running a team takes. Someone who is not familiar will get burnt out and you will have a terrible season.