This work investigates mechanisms for acquiring DSO services, especially focusing on network tariffs, flexible connection agreements, and local markets. These mechanisms, developed to facilitate the procurement of flexibility from third-party resources, are traditionally designed standalone without considering their potential synergies or incompatibilities resulting from their interaction to meet system service requirements. This paper aims to fill this gap by discussing how these mechanisms could interact with an analysis to identify possible synergies and conflicts among them by considering their design dimensions.