A subject matter expert (SME) external to the project team provides a suggestion that will save the project delivery time. This SME has available time to support the project, but was not planned to be involved in the current agile iteration. What should the project manager do? Ask the existing team members to collaborate with the SME and complete the activity. Ask the SME to complete all of the necessary changes, which will save time. Bring the SME on board immediately and discuss the implications later. Direct the team member to ignore the SME's changes as they were not planned