Summer- training hours VS playing hours

Basketball players should be practicing skills daily for 1-2 hours whether with a coach or without.  Early in the season you will see a greater percentage of conditioning, plyometrics, aerobic and anaerobic conditioning in an attempt to build a strong baseline condition that will allow players to avoid the "January-February" physical slump that hits players who failed to achieve that goal.  However most of this longer term conditioning can and should be done in the summer heading into the fall season.  Once fall starts, it is more common to be strength training say 2-3 days a week, and maybe moderate to intensive drills 2 or 3 odd days a week.   Doing both on the same day is counter productive.   The best coaches talk extensively with qualified fitness and athletic training professionals and are able to gauge what is physically too much work on a given day is detrimental to achieving quality skill development, and or athletic fitness and development.

I am personally a big proponent of Greg Brittenham's work (New York Knicks Atheltic Development Coach) who stresses the importance of using a ball in much of this athletic development work.  In this way kids (or NBA players) get the best of both worlds.  I'm a bit surprised that at least some of this Athletic Trainer's work doesn't include some basketball skill work at a component.  While I don't have any specific data to quantify how much time a player spends at basketball skills, athletic conditioning, strength development, core work, etc. I would hazard a guess from more than 40 years in basketball, that at least 50% of his time, or more should be spent on basketball skill development and team tactics.  I would say maybe 25% on basketball specific athletic conditioning and core development, and maybe the last 25% on athletic conditioning that is still exercise specific to basketball's athletic requirements but not necessarily with a basketball (this would include plyometrics, jump rope, sprint work, etc).  I do not doubt that what your son is experiencing from this trainers workouts will be beneficial.  But being in great shape without an automated jump shot, dribble skills with both hands, or the ability to move his feet and defend are pointless.

Actually I misspoke.  I meant to ask what is a good ratio of training VS PLAYING time?