In some embodiments, a hierarchical tree may include nodes that each indicates an objective, and each non-root node of the nodes indicates an objective supporting an objective of at least one node with which the non-root node has a direct relationship. Based on a modification to an objective of a given node of the tree, a determination of whether at least one child node of the given node indicates an unsatisfiable objective (e.g., no longer suitably supporting the given node's objective). For a child node of the given node determined to indicate an unsatisfiable objective, a corresponding subset of the tree may be replaced with replacement nodes that each indicates a satisfiable objective (e.g., suitably supporting the given node's objective), where the corresponding subset includes (i) the child node and (ii) descendant nodes of the child node.