If you really want him badly, I would say do whatever you can to convince him. Show the advantages of working on this start up and disadvantages of his day job.

If you really want him badly, I would say do whatever you can to convince him. Show the advantages of working on this start up and disadvantages of his day job. Sooner or later, he will have a bad day at work and he will surely think about quitting the day job. That is one when you will become an alternative.