Final answer:
Investing in employee training and development programs is the practice that demonstrates gaining competitive advantage through people. It aligns with the strategy of making thoughtful investments in human capital to boost productivity and competitiveness.
Step-by-step explanation:
The practice that illustrates the management of gaining competitive advantage through people is Investing in employee training and development programs. This approach is grounded in the concept that bureaucracies must make thoughtful investments in human capital. By focusing on improving human capital through upgrading the health, skills, or knowledge of the workforce, companies can enhance their overall productivity and competitiveness. Furthermore, care policies that encourage education and apprenticeships also contribute significantly to human capital development, underscoring the importance of investing in personnel for achieving a competitive advantage.