We were often told that Ryno had these same issues and that it was a reason for his not running well. I would definitely look into the issue online and see if you can find some exercises he could do at home. Hopefully this will allow improvement. If it doesn't, than I would consider the personal training. In today's game, speed is so important. My son can mash with the best of them, but his speed has always been subpar. Work on speed! Good Luck to your son!