I have done this before (albeit we weren't successful on our own). There were 3 of us- 1 recruited, 1 gameplanned, and one managed everything else. We went 7 seasons (6 at D2 Smith) where we made the Final 4 two times. It was A BLAST!
However, there are concerns: Money being a big one. You can't steal credit card info any way that I know of, however you wanna make sure no one slacks on their end of the money. Also, communication is KEY. We fell apart because of that. Didn't sitemail enough and ended up failing ultimately. Hopefully you guys can sustain the Firm for awhile.
If you go for this, keep a thread where all coaches who are part of the Firm are kept track of. It can be an elite-of-elite coaches' dream to be part of the firm- every time someone leaves you could have applications, and they can work their way from practice planner up to Head Coach or whatever. That could be fun.
Also since I am really interested, I could be a non coaching aspect of it and help recruit coaches. LOL