I will try world cup triathlons for the letsrun crowd.
I did compete at the world cup stage for three seasons (05 -08) but for my home country - not the US. I had a bike accident during a training ride and can't compete anymore. Not that this matters.
1) at the World cup level: The 10k run is often a bit short, sometimes a bit too long - but no one cares about the time really. We care about the final finishing spot, and the best strategy how to win. This is: be a really good swimmer (2), strong biker (3), and an excellent runner (1). Lukas V. seems to have the 2-3- 1 formula, albeit his swim needs to improve still.
2)Triathletes at the WC level can run their 10k after swim and bike nearly as fast as a full out 10k without the events prior to that. Just look at Brownlees, Gomez, Unger et al. Full out 10k is somewhere between 28:30 and 29:15 for the top guys. Add 30secs to a minute and this is usually their ability in an olympic triathlon. My PR on the road was 30:12min, and I was able to finish triathlons around 31 mins.
3) running strategy: the strategy is MUCH different from a track 10 k or even road race. Please watch some videos of WC's if you don't believe. Generally, across the races (although there are definitely exceptions). the first 1 k off the bike is run in 2:45 to 2:50, then settled in at 3:00 - 3:10 pace, and last 2k's under 3min. We try to "break away" from a big group of runners in the first bit, then settle and then take a longer endurance type "sprint" finish ( I know it is not really a sprint you see in the olypmic 10k with Bekele et al).
4) Good luck to Lukas Verzbikas. From what I read about him and what I saw last weekend I can assure he is the future. Nobody runs as fast as him - which is key to WINNING a triathlon. he is only 19, and since triathlon is such an endurance based event he has many years to develop in all 3 events. He might not actually run quicker then a 4 minute mile, but he will train his body to come closer and closer to his full potential in running after swimming and cycling. And this is what counts
I hope this helps a bit.