The reason behind this question is, that some teams have 3-4 members and others show off with 20.
For me, at least they meet the following criteria : 1. It is no problem for me to see 3-4 members as a team but their identities are clear enough with appropriate and capable educational background. It must be visible from their social media and recorded no cases of law.
2. They make future goals rationally and choose clear ways to achieve it according to the roadmap.
3. All the team members are responsive and friendly to the customers both investors or bounty hunters.
4. They make reports regularly to the public according to current progress.