Implementing a model of competence building in the XpressMP and building a case based on a simplified version of a hospital gave room for computational studies. A lower amount of nurse rotation lead to lower cost of external hires and thus decreased the cost of absence. The hospital chose to invest in gained competence, though even by several rotations the nurses gained mostly competence and special expertise within their belonging home wards. The main result of this thesis was the positive change in cost, by the increase of nurses competence. Compared to the solution of working with the initial competence profile, the optimal profile found by the model proved to be more beneficial even though the building phase produce an extra yearly fixed cost by increased salary.