Don't take away people's intrinsic quality of being capable. Don't remove their individuality by dictating techniques to them to use as a sole means for instruction. It's OK to SHARE techniques that have worked well with you, but they are NOT gospel for all...best case scenario is that the person can use that technique you have shared w/o change, but most likely a personal modification will go on.
So where does a coach fit in? His syllabus/curriculum should dictate the direction of the training and make sure that no area is neglected. He should not hand down techniques.
By telling someone what to do, you are ignoring their personal prefences/nuances/abilities and the cycle of ignorance continues by making the athlete dependent on the coach instead of self-sufficient/aware/responsible & confident in his own ability & promoting the coaches ego.
Years ago, I read one of Matt's interview's where he mentioned that there was one book in particular that was a guideline for coaching. A book called "Coaching For Performance" by John Whitmore. So I went and bought the book the next day and it has been alongside me since then. If there are any coaches that DON'T have it...you should be ashamed!!! ;-) GET IT!
The first key point he says a coach should do is to raise the awareness of the athlete. Telling them what to do (dictating techniques) denies them the awareness and doesn't do them as much service as ASKING them what they could do. Don't take away mental effort from the athlete!!!!!
Here is a GREAT example of what he talks about:
"Fred, go and get a ladder. There's one in the shed."
What does Fred do if he finds no ladder there? He returns and says, "There's no ladder there."
What if he ASKED instead, "We need a ladder. There's one in the shed. Who is willing to get it?"
Fred replies "I will", but when he gets there there is no ladder. What will he do this time? He will look elsewhere-but why? Because he feels responsible. He WANTS to succeed. He will find the ladder for his own sake, his own self-esteem. What I did was give him a CHOICE to which he responded."
So Fred "invented" techniques (looked in other places) to get the end result. Now what if that "boss" said: "Fred, there's a ladder in the shed. Get it. If it's not there, look on the side of the house. If it's not there, look on the other side. If it's not THERE, look inthe garage. If it's not there look in the cellar, if it's not there look in the truck If it's...."
See what I'm saying?
Now, IF Fred looked in a ton of places and didn't find the ladder, he could come back to the "boss" and the "boss" could give a few suggestions of his own.
Of course, if you want to do JKD, you will have to do the opposite of everything I just said.
If you would rather dictate a style/agenda then by all means, do all the mental work, remove participation, responsibility, creativity, individuality, expression, innovation, self-efficiency, & opportunity.
OR...you could walk the path of discovery together. The "big brothers" (those w/ more experience) can point, ask, lift up, encourage, and coax the lesser experienced in a brotherhood of personal growth.