The manager inventory chart by Prof. Davies Chacko provides an overview of employee history and potential future roles, including details such as age, employment year, current position, and performance ratings. It presents merits like identifying candidates for promotion and spotting training needs, but also has demerits, notably the time-consuming creation process and managerial reluctance to develop subordinates. Overall, it serves as a tool for assessing internal managerial talent and planning for future organizational needs.