A blog can have multiple contributors, as long as all contributors agree to have their work attributed to them and the blog maintains a consistent voice. Contributors should also be aware of the blog’s editorial policy, which should be clear from the outset.
If a blogger chooses to have multiple contributors, it is important that all contributors are kept up-to-date on blog developments and that any disagreements over content are resolved promptly and respectfully. In order to avoid potential conflict, it is also helpful to create a clear editorial structure and timeline for each article or post.