Poaching employees is a purely private matter though. When a company contracted by the government agrees to subcontract to smaller "disadvantaged" companies, but then hires it's own employee's firm, that may borderline on fraud from the taxpayer's perspective.
It has nothing to do with hiring staff, and you can't be an employee subcontracting an employer, that doesn't make sense. I don't think I clearly explained that you bring work to your FORMER employer, whom you leverage as a relationship. You can't carry on as an employee while you have contracts to your name, that isn't allowed. But you can work on some of the relationship building while you are employed and make the leap once you are ready to get work.