21st century brings a new way of business, there are almost no borders, and with the emergence of the Internet the distances are getting smaller. Global competition brings much more dynamic working surroundings, the resources which were accessible only to few for a long time are now accessible to almost everyone. Companies and organisations are starting to understand the role of human resources in making of competition advantage. Creating of additional value depends mostly on quality of human capital within the organisation, but on a manager's ability to develop and take human potentials of the organisation to the next level as well. Efficient human resources management is a common characteristic of all successful companies, and that function is primarily the responsibility of the managers leading those companies. The primary goal of every manager should be recruiting the most qualitative employees possible, as well as further development of all employees in the organisation, so that through the best human capital possible the company should become the most productive possible, and in that way more profitable. Managers are confronted with various challenges, from motivating to keeping the best employees in the company. The man is more and more in the focus of every business, and companies are more and more concerned with the wellbeing of emoyees. No matter how big, all companies, from big to small ones, are trying to achieve success through their employees, and the only way to do that is with the help of a manager who is capable of managing human potentials.