Hina, being a junior team member, should approach Takeshi first with her innovative idea since he is her direct supervisor and team lead. Takeshi would be responsible for evaluating her idea within the context of the team's projects and objectives. If Takeshi finds Hina's idea to be valuable and feasible, he would then escalate it to Akira, the project coordinator. As Takeshi's supervisor and the overall coordinator of the project, Akira would have the authority to make decisions on implementing the idea across the project or bringing it to the attention of higher management. It is through this process that ideas typically get reviewed and possibly adopted in a company, following the established hierarchy and chain of command.
Akira is a project coordinator, and Takeshi is one of the team leads reporting directly to Akira. Hina is a junior team member who reports to Takeshi. Recently, Hina came up with an innovative idea that could save the company a lot of resources. Considering their roles, who should Hina approach first with her idea, and how might the idea be escalated up the chain of command?

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