Over the past decade, much has been written about the results of reinventing government. Most research has examined the effects of executive or managerial perspectives. Using David Rosenbloom's competing perspectives model, we examine Medicaid managed care programs for children with special health care needs to illustrate the influence of legislative and judicial institutional perspectives on the reinvention movement. Legislative and judicial responses to the reinvention of Medicaid managed care reveal the outer limits of what managed care and related executive reforms can accomplish in a Constitutional system that is based on checks and balances among competing institutional perspectives. Furthermore, relative to Medicaid managed care, legislative and judicial responses conserve public responsibility to society's most vulnerable populations. In the long run, the balance of institutional perspectives and values—not managerial innovation per se—will influence public administration.

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The coinvariant algebra Rn is a well-studied Sn-module that is a graded version of the regular representation of Sn. Using a straightening algorithm on monomials and the Garsia-Stanton basis, Adin, Brenti, and Roichman gave a description of the Frobenius image of Rn, graded by partitions, in terms of descents of standard Young tableaux. Motivated by the Delta Conjecture of Macdonald polynomials, Haglund, Rhoades, and Shimozono gave an extension of the coinvariant algebra R n,k and an extension of the Garsia-Stanton basis. Chan and Rhoades further extend these results from Sn to the complex reflection group G(r, 1, n) by defining a G(r, 1, n) module S n,k that generalizes the coinvariant algebra for G(r, 1, n). We extend the results of Adin, Brenti, and Roichman to R n,k and S n,k and connect the results for R n,k to skew ribbon tableaux and a crystal structure defined by Benkart et al.

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