In "combining perspectives," scott describes scholars attempts to synthesize and reconcile the rational, natural, and open systems perspectives. the result is a proliferation of theories. does this proliferation of theories or hinder organizational sociology in your opinion?

We need to first understand the meaning of theories, and proliferation and organizational sociology,to decide whether this is a hinderance or not.

In sociology, organization (or organisation) is understood as planned, coordinated and purposeful action of human beings to construct or compile a common tangible or intangible product. This action is usually framed by formal membership and form (institutional rules). Sociology distinguishes the term organization into planned formal and unplanned informal (i.e. spontaneously formed) organizations. Sociology analyzes organizations in the first line from an institutional perspective. In this sense, organization is a permanent arrangement of elements. These elements and their actions are determined by rules so that a certain task can be fulfilled through a system of coordinated division of labor.  

An organization is defined by the elements that are part of it (who belongs to the organization and who does not?), its communication (which elements communicate and how do they communicate?), its autonomy (which changes are executed autonomously by the organization or its elements?) and its rules of action compared to outside events (what causes an organization to act as a collective actor?).  

By coordinated and planned cooperation of the elements, the organization is able to solve tasks that lie beyond the abilities of the single elements. The price paid by the elements is the limitation of the degrees of freedom of the elements. Advantages of organizations are enhancement (more of the same), addition (combination of different features), and extension. Disadvantages can be inertness (through co-ordination) and loss of interaction.

Management theory is important because it is the study of how to make all the people in your organization more productive. If you are self-employed and have others working for you, or you outsource certain jobs you are unable to do, then you know how hard it is to find qualified competent professionals to provide you a service or work for you.

Proliferation; Here are some definitions. Noun. (uncountable) The process by which an organism produces others of its kind; breeding, propagation, procreation, reproduction. (countable) The act of increasing or rising; augmentation, amplification, enlargement, escalation, aggrandizement. (countable) The result of building up; buildup, accretion.

I think, given the understanding of all phrases that it can help in deciding how quickly the organization can grow, if growth is needed.