to put some blah blah in context it would be interesting to know what kind of daily sport practice she is involved in.
some textbook theory says that too early specialization and urge for performance can lead to excellent youth results that are not necessairly predictive of adult-age ones.
the mechanism being that if the coach focuses too much on early performances 2 bad things can happen:
a)the young athlete's mind and body are not respected and will enter a crisis later on (à la jennifer capriati)
b)the focus will be put on rapidly-achievable qualities (eg, specific endurance) somehow at the expense of long-term ones that are best developed at an early age (motor and mental skills, "athlete's lifestyle and ethic", ect...)
that said ondra (and his parents) probably focused on the bigger picture and still had excellent results...