Amen. I would listen to a person like Joe Vigil. 4 factors.....
1. Genetics. What mom and dad gave you.
2. Environment including training partners, weather, facilities, auxiliary/medical/training staff...
3. Experienced coach with a sound long term plan.
4. Motivation. Internal/external.
His question was which ones can you control? Ahaaaaa....
After nearly 50 years as an athlete/coach I've had to evolve in many ways from personal experience as a runner and as someone responsible for performance enhancement of others.
I'll start by saying that there just isn't many Jim Ryun's, Marty Liquori's, Bob Kennedy's, Frank Shorter's, Galen Rupp's, Steve Prefontaine's, Lingren's etc.... that we look to as the standard. There are a lot of good runners in that next tier behind the greats mentioned and others not mentioned. So what's the difference between the second tier and the Greats? Look at Vigils list again. Which ones can be controlled?
I'll also throw in another variable and that's luck. There are many unlucky occurrences that prevented you from knowing about others that were on the edge of greatness but just couldn't get there.
Now, go down the levels. College, high school, Junior High, those that discovered running on their own later in life etc... Which of Vigils list can be controlled for them regardless of their running age? It's the same at all levels.
I always tell my kids that hard work beats talent 90% of the time. It's those darned 10% that are talented AND hard working that are really hard to get around.
I've worked with elites including state/national champions and Olympic Trials qualifiers and some of the slowest kids in the state. It's my job to be a good communicator at all levels and give sound, developmental direction over the time we are together. I can't control some of the things on the list and neither can the athlete.
However, it's the internal motivation that is where it has to start. That's from having the confidence to give it their first try and evolving in a way to understand and own the training that is pointed to specific performance practice and racing goals. Appropriate development of the mental and emotional facets of the athlete is obviously critical as well.
I always tell the athletes that it is never my workout, my race, my team etc...It's always theirs. Not all are ready or capable of OWNING every facet of the experience. So, it's my job to help them realize what they are capable of with truth and honesty so they can own it and enjoy it regardless of what level they achieve.
As a coach, one of my main responsibilities beyond the development of the athlete is to make sure they CAN consider coaching/teaching others. I can guarantee you that there are coaches that weren't superstars on the track/course/road but they know what it takes to help others. That's probably what I'm most proud of.
What can they control and what are they willing to do with no guarantees?