A remarkable thing about the brain that we have only recently begun to understand is that different parts of the brain are responsible (or control) different functions. For example, the primary motor cortex in the frontal lobe is largely responsible for signalling motor commands to the muscles through connections within the spinal cord. However, this is not the only part of the brain involved in movement. In fact, there are numerous parts of the brain involved with even the most simplest task, such as reaching for a glass.
The idea of a control center for the whole brain misses the point...the whole brain is a control center and many parts are involved in even the most simple tasks.