i have a 9 turning 10 year old nephew who i coach and our season just ended and i want to better prepare him for next year and i was wondering what are some good practices for a catcher/first basemen during the off-season some of the key things im working on for him is arm strenth,speed behind the plate,and his consistancy on catching wild pitches i.e. dirt balls high balls outside balls also he has some balance issues (holds self up while squatting with throwing hand etc. ) any tips to work those out??