Scout players can make your team much better depending on the player position you buy.
I bought a DC/DR first in my 2nd season and its always worth it to have excellent defenders, although I read alot about 1* and 2* defenders routinely stopping 6* STs with 1v1.
I bought a GK with 1v1 in my 3rd season. best player on my team and took penalties and scored 4 goals.
I bouth a 24 yo ST with freekick in my 4th season. WORTH EVERY TOKEN! Goal per game average + assist per game average. You can win many games 2-0 or 2-1...or more.
I bought a 22yo MC with corner this season and again, worth it.
I am now looking for another scout, possibly ST with 1v1, MC with freekick, or DC with aerial or wall.
For non-token buyers, scouts make the difference.
For token buyers, they use them when they cant buy an 18yo on the market to train.
Or they use them to fill their roster for the CUP after they get put against lower quality teams.