See the graphic I have created below. Overload, Adaptation, Specificity & Reversibility are the keys to training. I have also added in a Performance Management Chart (PMC). It’s important to note that the PMC is displaying all 4 of those principles.
In the PMC you will note the gradual rise of fitness (blue line) as the athlete is in the overload / adaptation phase. You will also see it drop after a major race as the athlete recovers depicting reversibility.
The blue dots are indicating the specificity of training. You can see on the left of the PMC the athlete is in their winter base with lower fitness levels and lower blue dots. As they get into proper training, the fitness rises and the dots become higher showing training is becoming more intense.
The key to it all as your coach is getting the correct balance and timing right for all these factors as we lead into the races.