piratetom: Walker Valley has has some tremendous struggles. It is still a relatively young school, and football has not been its strength so far (basketball and band have far outpaced it). The coaching change prior to this season was watched with a degree of skepticism, since the new coach was elevated from assistant in the old system. However, the Mustangs did make some positive strides this year. It is hard to gauge with a single year, but so far it looks like the new coach is moving them in the right direction.
As hootowl noted, there are challenges ahead. WV moves up to 6A next year, which pits them against Bradley and McMinn for playoff chances (not sure that is any worse than fighting Cleveland and Ooltewah for it, but it is a difference). Trading East Hamilton for Rhea County appears to be an added difficulty in the district.
Assuming the promising start of the coach is an accurate indication of his intentions and approach to improve WV football, I believe that the program would benefit greatly from having someone like yourself providing support (being from S. Pitt, you know what winning tradition is all about, obviously). I would encourage you to try and find a way to become actively involved as a booster, and help others understand how they can support a team toward becoming stronger.
Realistically, your son will probably face some discouraging seasons (despite the positives from this past season, their losses were all very ugly - except for the Bradley game). There is potential for success, but it will not come easily, or immediately. With parents like you (who are passionate about the process), that potential will be easier to reach. I salute you for your interest in making your son's experience the best it can be.