The document discusses several key challenges for managers of Non-Governmental Organizations (NGOs): 1) NGOs must maintain transparency in their operations and goals while mobilizing financial resources through donations, grants, fundraising events, and volunteer labor, which requires complex organizational and administrative skills. 2) They must persuade people to donate time and money to support their causes and mobilize large numbers of volunteers and participants for events. 3) Effective governance, clear distribution of responsibilities, financial management, and communication of the NGO's aims and activities both internally and externally are also important factors for managerial success.