Help people, empower them, provide resources and tools they need to be successful, but DO NOT do their work for them. Completing the work of others doesn’t help anyone. It doesn’t help them, it doesn’t help you nor does it help your organization. People must be empowered and positioned to succeed, yet they must be accountable for their performance and contributions.
Furthermore, everyone has a role to play and your time and effort is much better spent elsewhere. Focus on your responsibilities and have others do the same. Remember, you are a team.