Final answer:
The best action for the HR leader is to conduct a comprehensive assessment of the HR department that considers both internal and external elements, aligning the HR structure with the company's goals while accommodating growth and maintaining professionalism.
Step-by-step explanation:
The most effective course of action that the HR leader in the musical instrument company should take is to initiate an assessment of the HR function to include both internal and external considerations. This comprehensive assessment will allow them to identify the specific needs of the different departments such as sales, service and repair, music lessons, instrument rentals, and publishing. Given the organizational complexities and expansion into new endeavors like their own brand of mandolin, this strategic approach will help align the HR structure with the company's goal of prioritizing quality and efficiency while adhering to the strategic plan. It's crucial to understand the dynamic nature of the workforce and how best to structure the HR department to not just handle current needs but also to be adaptable to future changes in the business landscape. Professionalizing HR functions could reduce biases in hiring and contribute to more efficient and fair recruitment processes as the company grows.