If he is a 50T scout having a bad season then he will come good the next as for normal players and scouts I am testing this one out this season!, I have a 50T scout MR whos stats are nothing short of shocking!!! 4s and 5s with the odd 6!, but I am persisting with him and shall weight for better things next season!, I also have some two 5* defenders and one 5* striker all young 18 and 19 two of which started off slowly but after around ten games, plenty of training and match experience thier stats have really improved so its a case of being patient and if your not happy try him in a different position i.e if he is a striker and you play him on the right try him on the left or in the middle, if he is a MC try him In all three MC positions!, check which is the players favoured playing foot and play him on the side of his favoured foot!.
You do get some players that just are plain bad, but to reduce the amount of duds you find, when buying players look out for the simple things like buy HOT PROSPECTS, or if your buying 18/19 year olds compare the prices of two identicle players!, if one player is alot more exspensive then try to buy the higher priced one as he is the better player and most likely turn out good for you!!!, the same applies to acadamy players, if you release the token player and keep the free less quality one then the chances are you are going to have a slow progression or struggle!, you get what you pay for!!!.