Not sure if this counts as I'm not in the US but I'll share my story. I'm in the Philippines if it matters. Anyway...
I quit my day job a few months ago because I wasn't happy anymore. I spent the past 6+ years with corporate giants IBM and NGA as an HR consultant. Pay was great but the daily grind was too taxing and I wanted a break.
About a couple of weeks after being unemployed, my best friend (who's an assistant coach in our pro league, Philippine Basketball Association or PBA, and with our national hoops team) asks me if I wanted to help him out in a new team he and other pro coaches were putting up. We also have our version of the D-League and they were setting up a team.
With basically little to no pay guaranteed, I accepted a role as an assistant coach/assistant team manager. As I've never coached in any level but have corporate management experience, my duties were mostly in helping run basketball operations (logistics, supplies/equipment, etc) and keep game statistics. It may not be as financially rewarding as my former day jobs, but I'm very happy and fulfilled with what I'm doing. Hopefully, I build a good enough resume and maybe someday go up the ranks in pro hoops here.
A season here in the PBA and the D-League consists of three tournaments so a team can win up to 3 titles in one basketball year. Anyway, our team is currently 3-3 and sixth in the league out of 11 teams. We have 4 games left and the top 6 head to the playoffs.
In three weeks, I'm joining the Philippine National Team as they play in an international invitational tournament in Hong Kong. I do not have an official role there but I'm going to soak up the experience and learn from it.
Anyhow, my advice to those who want to get into coaching is to make the effort to volunteer in high schools or perhaps community colleges. It does not matter what you're role is. Start out at the bottom as a video guy, or statistician, whatever. But get a foot in the door and learn the ropes. Borrowing a line from the great Ray Lewis, "Make an effort and you will get noticed."
Most of our team's players are still playing college basketball (yes collegians here are allowed to play in our D-League) and I tell you, nothing beats the feeling when a player goes to you seeking advice on how to get better. Now I kinda know how teachers get their fulfilment.