I hope he gets a good manager.
Yes, they will surely find a manager and 10+ participants in the campaign who will work for a percentage of the potential earnings. Things don't go that way, I'm surprised that someone would even think of such a scenario.
If it's a good project, then it's better that he invests in marketing himself and later when the profit is big, he won't have to share $1-$2k weekly with the manager and campaign participants.
Based on what I read the bounty manager will spend funds to pay those participants or they will pool their money to pay for participants, I'm not a bounty manager but all I know is the project manager should be the one to shoulder all the cost and the bounty managers are the one picking and creating the rules of the campaign, the manager will oversee the campaign to maximize the exposure of the project.
It still depends on what they agree but in the long term the project is the one that will benefit in the campaign