The Norte Chico chiefdoms were "almost certainly theocratic, though not brutally so", according to Mann. Construction areas show possible evidence of feasting, which would have included music and likely alcohol, suggesting an elite able to both mobilize and reward the population. The degree of centralized authority is difficult to ascertain, but architectural construction patterns are indicative of an elite that, at least in certain places at certain times, wielded considerable power: while some of the monumental architecture was constructed incrementally, other buildings, such as the two main platform mounds at Caral, appear to have been constructed in one or two intense construction phases. As further evidence of centralized control, Haas points to remains of large stone warehouses found at Upaca, on the Pativilca, as emblematic of authorities able to control vital resources such as cotton.