Who are All the Providers Servicing My Plan? What Do They Do? Do I Want a One Size Fits All or a Build Your Own? As an industrious business owner, you may not have time to ask all these questions, let alone sort through the answers. Understanding your plan administration can become complicated, but it does not have to. There are two main options for you to choose from: Bundled vs. Unbundled—or you can think of them as a One Size Fits All approach vs. a Build Your Own Option.