This is a funny read.
Have y'all ever accomplished anything great during the course of your life? How did you do it? Hard work? Natural inclination (gifts, if you will)?
Did you ever know someone who had great potential but ended up not fulfilling that potential? Why was that? Perhaps injury, some hardship, but most likely they were lazy and/or just didn't have the gut-busting fire for the task at hand.
How did Tiger become great? What was Doak's deal regarding his path to becoming a great architect? How did Warren Buffett get into investing/business? When did Justin Timberlake start dancing and singing?
Bottom line...start young, have some sort of gift, get great instruction, and work you ass off and you'll be great. Defining great might be tough, however.
Change one of those variables and great becomes something less. Maybe it is good. Maybe it is average. Maybe it is failure. Again, defining those words might be tough as each is relative with a lot of context inherent in it.
But here is the deal...someone do it. Put in 10,000 hours over the next ten years at something. Check back with us. I'll bet something pretty special happened along the way. If you do this in business, I'll bet you end up "rich". However, we will need to define "rich". If you do it in golf, I'll bet you get "really good". Do it in the context of working out, I'll bet you get in "good" shape.
Or we could just pooh-pooh the whole thing, say how ridiculous the idea is and go on with our "average" lives.