The study investigates the role of the fronto-parietal network (FPN) in adaptive task control, proposing that this network's adaptability is due to 'flexible hubs' – brain regions that rapidly update their global functional connectivity patterns according to task demands. Using advanced neuroimaging techniques, the researchers found that the FPN's functional connectivity patterns shifted more than other networks across various task states, and these patterns could be used to identify the current task. These patterns were consistent across practiced and novel tasks, suggesting that flexible hub connectivity patterns facilitate adaptive task performance. The findings support the central role of flexible hubs in cognitive control and the adaptive implementation of task demands. The study also tested two key mechanisms of the flexible hub theory: global variable connectivity and compositional coding, both of which were confirmed in the FPN. The results highlight the FPN's ability to coordinate multiple networks during task performance and its systematic representation of cognitive task states, enabling the transfer of knowledge and skills across tasks.The study investigates the role of the fronto-parietal network (FPN) in adaptive task control, proposing that this network's adaptability is due to 'flexible hubs' – brain regions that rapidly update their global functional connectivity patterns according to task demands. Using advanced neuroimaging techniques, the researchers found that the FPN's functional connectivity patterns shifted more than other networks across various task states, and these patterns could be used to identify the current task. These patterns were consistent across practiced and novel tasks, suggesting that flexible hub connectivity patterns facilitate adaptive task performance. The findings support the central role of flexible hubs in cognitive control and the adaptive implementation of task demands. The study also tested two key mechanisms of the flexible hub theory: global variable connectivity and compositional coding, both of which were confirmed in the FPN. The results highlight the FPN's ability to coordinate multiple networks during task performance and its systematic representation of cognitive task states, enabling the transfer of knowledge and skills across tasks.