he might just be a slow developer mentally,it might take him longer to see things the way they should be than others in the team,he may need to be told or have to see the same thing over and over and over before it registers.all that matters is that it does register. so in case it is this its good he gets an extra season to show he can learn,couple that with the fact that no one wants to buy him as farr as we can tell and if they did it would most likely be at a huge loss,so really whats their to lose.