You aren't going to have time to resolve everyone's concerns in one large meeting. One on ones are better for hashing out the idea and looking for compromises.

You aren't going to have time to resolve everyone's concerns in one large meeting. One on ones are better for hashing out the idea and looking for compromises. Usually there is not some other person you are directly competing against - if there is then it's worth looking at the bigger picture of why you are competing in the first place when ostensibly your on the same team.