Hire me as your boss. We write a contract. The contract stipulates that you have complete ownership of the idea, I get profit sharing for payment, but if you don't execute at a reasonable time pre-negotiated then I can throw the idea out there to have someone else get this project coded--with you still retaining complete intellectual ownership of the idea but they are added to the profit sharing pie.

=)

Logically your reaction will be heck no because you can do it yourself and keep all the money to yourself, but you have just then created a paradox because this is exactly what makes you execute and seems to be what is preventing you.

That was all in hypothetical fun of course but I think would work in practice. Sometimes people don't need to find or "hire" co-founders, rather a "boss". But to overcome your biggest challenge, which is yourself, @JonnieCache and others here definitely know what they are talking about.