I would really push goalie skating with them at first. A lot Tee pushes, side shuffle, micro shuffle, butterfly fly slides and butterfly pushes. Work on hand eye coordination at home with racquetball. Push good fundamentals good stance, good hand positioning, driving knee in butterfly and tracking puck in and out gear. Then start working on angles, squareness and depp. If they don't learn how skate well first then pretty hard to play on top off there crease. Skating got to come first before can really push them out. I got some basic goalie skating drills I can send you.