What's the problem? Bounty manager is the same as a normal forum user, just like the other participants, it does not need any additional admissions and permissions. Find a project, stock up on tools for bounty, such as google table, open a new topic, make sure that participants bounty fulfill the conditions, distribute rewards.
DT members will make his trust page bleed red if he starts running a campaign without escrowing the funds which is what should be done since the participants could be exposed to the risk of getting scammed.
Managing a campaign can be challenging if someone without proper knowledge and experience comes out of nowhere and starts immediately with managing a campaign. It's better for OP for first get himself familiar with each and everything within this forum as well as in cryptocurrency industry in general.