in other words, in many sports, people can train in a number of ways, and still get similar results.
For power and strength, as article suggests, there is no single best way to gain these vital ingredients. Muscle fibre can be worked in a variety of ways.
I see most sports as skill and conditioning. whatever the sport, try and keep exercise relevant and specific, but there are a lot of options out there to get desired result.
for example, while I have never been a super athlete, my best ever power results occurred after a 6 month period training for 20 minutes at Findlays supersetting nautilus les press and leg extension, say 20 reps each.
Other times, I have got results from Olympic lifting training, and even bb leg training.