The aim of the article is to analyze the implementation of the human resources function over the last decade. The first part of the article examines the evolution of the human resources function from its inception up to contemporary times. The second part analyzes the changes in the implementation of the human resources function over the last decade in the form of a case study of a selected company. A triangulation approach was used, employing the following methods: analysis of relevant literature, participant observation, and analysis of organizational documentation. The third part analyzes whether, and to what extent, the implementation of the human resources function in the studied company is consistent with the contemporary phase of development of this function described in the literature and with the requirements of the environment. The results of the study showed that the changes in the implementation of the human resources function in the analyzed organization over the last decade are consistent with the development phase of the personnel function described in the literature but are insufficient in the face of dynamic changes in the environment.