The topic name is too short. So the question is...
Why managers changing drivers with all attributes = 20, but experience (exp).
Usually, they drop drivers with exp = about 15 and age about 25. Getting new ones - younger drivers with exp = 1.
Do drivers getting significantly slower at age 25-26? Does loss of the experience of 15-20 costs loss of age?
I think drivers in the age of 25 still should be as fast as 19 years old ones.
It's all about salary, easy.
I have a driver of 29 years old, 553,5k each race, (who I ain't drop because he is a legend for me) and a driver of 19 getting payed around 343k each race. 200k difference, meaning a difference of around 4 million a season, and that's much. More than you win with 12 exp difference.