"Certain is nothing in T11", think that you can find 11 players that scored 40 goals last season, buy them, but, with these players the game will create an order of leadership/contribution, so you will not have 11 players having ratings of 9's-10's and scoring 40 goals per season.

Buy one, with good numbers + goor ratings, see if have some 9'-10 in last matches and if has been MoM some times, this matter, then as said, maybe, suddenly the game will decide a season scenario where this player is very/non agressive, or have more/less injuries, or inside your team, maybe will have a place as one of these who do a better contribution.
Then your job will be notice about that and make decisions.

But as said, -new player- test it, in a frienldy vs a 1* and you will oversize the internal programming, so if you see him continously or score a hattrick, or is MoM and have 9-10, then is important to count with him.