A Career in Coaching?

A female friend commented that I've the makings of a good (rockclimbing) coach. Lamenting about how I can't even get my own climbing right, how then can I muster the gall to coach others? To this she countered that the best coaches aren't necessarily the best climbers. Stopping short of sounding like I'm afflicted with a bad case of confidence crisis, I put forth the argument that one must first achieve some level of competence before even considering helping others. What level of competence required is subject to interpretation and debate.

at SIM boulder comp with NUS novice girls in my capacity as a trainer (i've since relinquished the position)

Having contemplated this issue before, I had a ready answer. Almost mechanically, I replied that because climbing is an experience sport, it is requisite for one to be a good climber first before he can be a good coach. How else can you share that experience (be it climbing hard outdoors or competing at the highest level) in words/actions?

Good advice, when given concisely, is beneficial to the receiver. But poor advice, no matter how well-intentioned the giver, does more harm than good. However, being caught between the two courses of action may also lead to debilitating paralysis (I often find myself in this position). I don't know which is the right thing to do, but I do know that it takes a lot of wisdom to discern the difference, and even more wisdom to act on it.

Having said that, I agree that top climbers do not necessarily make top coaches. Some top climbers are reclusive and don't like to share, or simply can't convey their ideas in a persuasive/convincing/inspirational manner.

Let's turn to the mental skullduggery of philosophers to make sense of this whole dilemma (or become even more confused!):
(a) It is sufficient, but not necessary, to be a good climber before you can be a good rockclimbing coach.
(b) It is sufficient, and also necessary, to be a good climber before you can be a good rockclimbing coach.
(c) Being a good climber is sufficient for being a good rockclimbing coach.
(d) Being a good climber is necessary for being a good rockclimbing coach.
What is the correct answer?

Personally, I like coaching on an adhoc basis, but I'm unsure about making it my long term career. I have a friend who insists on not making his passion his job, for fear of it killing his passion. I've yet to find a definitive answer for myself, but there is time still. Would I want to test myself in the corporate world? Does the 'Those who can't do, teach' statement have any basis in fact?

So many questions.. so few answers.. I don't know many things, but I take comfort in the fact that one thing I know for sure: I'm still a silly little boy, groping around in the darkness, trying to make sense of the world we live in.