drugs or no drugs, the training improvements in the short sprints specifically with regards to warm-up are quite real and if you are still pushing an athlete to jog a half mile or a mile in a warm up and then following that with active stretching you are always going to be behind the curve.
As for talent, what the heck is the talent. Describe it please! There is no such thing really. There are individuals who have better skill development derived through their abilities, but abilities do not equal talent and neither does skill or skill acquisition.