How to spot fast trainers?

[kumek]

I am level 27 and people say its the market value but all the players are from 109-111 million and i bought 4 18 year olds and none of them was a fast trainer.. So does anyone know how to find out at my level ??

[padrino]

I am level 27 and people say its the market value but all the players are from 109-111 million and i bought 4 18 year olds and none of them was a fast trainer.. So does anyone know how to find out at my level ??

Look at player's price and salary, that's my experience.