A project manager is leading a project with a team that is comprised of both...

Ask the least experienced team members to work as assistants to the more experienced team members so they can gain some project experience.

Ask the project sponsor to replace the least experienced team members with more experienced ones.

Identify how the team members with no experience can contribute according to their capabilities and provide training if needed.

Assign critical project tasks to the most experienced team members as they are the only ones with the knowledge.