As most business plans go, it comes down to the numbers. If you can make a good argument that you could increase the amount of subscribers by adding your content then you would have a chance of getting put into the network. Kangaroo homo brought in people, soph did as well. In the case of coppercab, Gaven keeps him around as a pet.
If you were to cover your arm in oil and dip into a barrel of sesame seeds, that is how much Gavin fucks up in any given episode.