How to spot a jumper...
A lot of people asks how you spot a jumper.
First of all it is easiest to do in the beginning of the season. Generally "jumpers" start the campaign with a very good team most scouts and even world class.
Then you look at the following seasons result (this you do by clicking on the players team). With a scout team (6 stars, 5 yellow and 1 red) it is fair to say you should finish among top 7, right? If the team didnt make the 7th spot they deliberately avoided advancing. At least competent players with 15 or more seasons of experience.
You can find out a lot of things about other teams, like which date they where created and the trophies.

Go hunt!
Vagablue