Please see these external links for some additional drills:

http://www.performbetter.com/webapp/wcs/stores/servlet/PBOnePieceView?storeId=10151&catalogId=10751&pagename=209
http://www.livestrong.com/article/100837-coordination-exercises-kids/
http://rosstraining.com/blog/2012/08/04/simple-drills-for-coordination-development/

Agility:
http://www.kingsportstraining.com/blogs/agility-videos
http://www.kingsportstraining.com/blogs/training-blog/8269753-10-best-speed-and-agility-cone-drills

Core Strength:
http://www.realsimple.com/health/fitness-exercise/core-strengthening-exercises
http://sportsmedicine.about.com/od/abdominalcorestrength1/a/NewCore.htm