Train what you're good at or fill the gaps?
So I listened to a podcast with Bill Hartman a while back ago and the topic of training for or against athlete's "superpowers" was discussed. I'm going from memory so I may not be completely or accurately be describing the topic here and I am still working out my thoughts so I apologize if the question is hard to get to or I'm not accurately depicting the point. Basically the idea was you don't want to stray too far in training (S&C) from what an athlete is built/adapted for in fear of robbing them of their "superpower" (example of a narrow ISA doing heavy strength training past a certain point was used in the podcast). My understanding of this is for example say you're working with a jumper of some kind who is very elastic/springy. The training you prescribe would align more with what they're good at (ie shorter impulse work, perhaps shorter ROM, avoiding high load/lower velo prescriptions and biasing more towards higher velocity lower load prescriptions). Now what's conflicting for me is how this works with the fill the gaps or insurance policy approach that's tended to be popular within S&C which basically says fill in the space that the sport is missing. So lets say you are working with the same jumper from the example above except this time you know they are good at shorter impulse work and they are getting a good bit of stimulus from practice so you fill the gaps with more traditional strength and hypertrophy training. Perhaps I am taking this in too much of an absolutist mentality, but what are your guys' thoughts here? Do you fill the gaps or do you try to align your training with the athlete and what they're built/adapted for?