This is a 'young fast trainer'
When I bought him, he was a low 5 star player.
It took me a week to get him to scout quality, and add his special ability.
It would have took about 5 times longer with a cheap old player.
He's still the same quality after 2 seasons too, that wouldn't be possible with an old player.
So take it from the more experienced players, it is better to buy young players.
Also, according to those pictures, you've tried to add SA's to nearly all of your players, and that is why your team has decayed so badly.
The amount of skill points you spend on an SA amounts to an extra star of quality if you'd used them more wisely.
Also, special abilities add NO value to a player.
As other members have said, I strongly recommend you have a read of the Top Eleven Wiki.