Eddies in the stream can increase the flow of the current.
Local decreases in entropy (i.e., pockets of increasing complexity) are not only useful, but may be necessary, for the overall entropy to increase even faster. For every little growing plant an enormous amount of sunlight, water, air and soil must be broken down to simpler states. The plant is highly complex, but the total increase in entropy of the system is maximized because of it. Complexity in an entropic universe is not a contradiction, it may be a requirement.