For me a manager can be a benchmark whether the bounty will be successful or not. It is worth noting that today there are almost a lot of bounty managers, but that gives us a certainty only a few people. I think one of the best reputable managers is yahoo, sylon, and deadly he is a trustworthy persons and he connects the project owner with all of us who try to follow the bounty provided. Yahoo, sylon, and deadly is a wonderful manager and everyone believes in it. He has been building trust for several years and I think he has brought out everything he has.
Its not easy to identify good ICO as of for now, as Bitcoin becomes more popular and many people got interested to get involved. Many hackers and scammers whom make us fool, but for me I had found a wise technique in looking for a good ICO and that is by a following and searching who is the bounty of manager. I follow those manager I've experienced good service in many bounty projects.