Variation of congestion centrality ρmax as a function of ξ, where increasing ξ corresponds to decreasing task decomposability. Symbols correspond to the same parameter choices of (λ, ζ) as in Fig. 3B, with 100 samples per data point. Multiscale networks perform almost as well as core-periphery networks over the entire range of ξ, and significantly better than all other classes (random, random interdivisional, and local team) for any but completely decomposable (ξ → 0) tasks.