If there is trouble finding people to hire because they are all out starting their own companies that means one or two things:
1) There is an over supply of management. Developers/engineers are able to manage themselves effectively enough that they do not need to spend their time enriching someone else.
2) Engineers are turning to their own business plans because that is the only way to get adequately compensated.
I think #2 is more likely. I believe we are seeing the start of a shift towards engineers making as much or more than the management/CEO types. Engineering bargaining power is on the rise and will only continue to get stronger.