TheGuardian, I agree wholeheartedly.
To the poster whom you quoted, cjathey, I'd be really curious to know who these top level division one xc runners who run 60 mpw and do one hour of strength a week.
In reality, most top Division 1 teams are doing much more. For example, U. of Michigan runners under Coach Gibby are running between 90-110 mpw in addition to several hours of weightlifting and drills. Portland, is also a high mileage program. I know this from having close friends on these teams. Look up Josh McDougal's old running logs. He was running 100+ mpw at paces few can dream of, running them mostly in singles.Most successful Division 3 programs are doing more volume than this.
However, to compare triathlon training and running training is comparing apples and oranges. Running many miles is much tougher on the body than triathlon training, because, the specificity is more broad. This doesn't mean that one is easier than the other. Personally, I find triathlon to be the harder sport but that's because I'm a poor swimmer.
Additionally, I would say that it's an athlete's unique physiology that makes them suited for a particular distance. Despite having run 3:46, there is and never was any chance of Alan Webb, or El Guerrouj for that matter running anywhere near the 10k world record of 26:17. They are different energy systems. That said, and to bring this back to LV, he has shown great range. For those interested in methods of comparing runners objectively, I'd encourage people to investigate Bill Meylan's speed rating system.
http://tullyrunners.com/Articles.htm I'll explain this poorly but runners are given a numerical value, their speed rating, which compare three things, finish in relation to other individual runners of known ability, finish time on a race course of known speed, especially when the speed is known relative to other race courses
and the quality of the race itself in relation to other races. In general, speed ratings are pretty reliable. LV, recorded a 207 at Footlocker and a 203 at NXN. While not an indicator of where he may finish in an 8k or 10k, it shows that his ability to run well in cross country is a fact. For comparison, Chris Solinsky recorded a 212 when he won Footlocker as a senior and when AJ Acosta won he ran 207.
Personally, I think that if LV stays healthy and focused, his ability to run a quality 10k will not be the issue. His biggest hurdle will be making sure he is in position after the swim and bike.