Unless he has high potential in many areas, as others say, he is not that great of a player. In that case, you would want to get rid of him as soon as possible, so redshirting him is exactly the opposite of what you want to do. Just let him sit on the bench for his career.
You only have 4 SO, so it is not really that badly balanced in that class. You have a lot of SR, so you can start balancing your classes when you recruit next season.