The best coaches will work with what you have and not try to model all batsmen / bowlers the same. The principal to coaching is to improve your weakness and develop your strengths. Not everyone has the same physical attributes so how can you have everyone doing the same thing, if it were that easy there wouldn't be a game.
Look at Golf, all the pros you see on the TV and even those who have the same coach have different swings, this is due to the physical strengths of the player.
Coaching must begin with the basics, each year go back to them as you will have developed faults during the season, its the off season which prepares you for the season ahead during which it should only be fine tuning required.