Value of Attributes
This information gathered from ml-reports.com  will tell you how much a certain attribute is worth to each individual player type,
 making it easier to work out player Quality, The following infomation also has indicators of most important attribute
          RED          bieng 1st important    
            ORANGE       bienge 2nd most important
  YELLOW       bieng 3rd         
PALE YELLOW  bieng 4th          
   GRAY         bieng no use at all

Goalkeepers

     Kp   Tk   Pa     Sh   He   Sp    St     Pe
      +0.363      0       +0.091          0          0     +0.182    +0.091    +0.272

Defenders

   Kp   Tk      Pa   Sh    He    Sp    St   Pe 
  0       +0.364       +0.182       0      +0.091    +0.182    +0.182     0

Midfielders

 Kp    Tk    Pa    Sh    He    Sp     St   Pe
  0       +0.181   +0.363   +0.181     0       +0.181    +0.095      0

Strikers

Kp    Tk     Pa    Sh    He   Sp   St     Pe
      0            0       +0.091   +0.364   +0.182   +0.182     0        +0.182

Things to remember

Note some attribute gains add no quality towards your player yet the player needs certain attributes to help with match ratings,
Stamina is important for your player to remain fit throughout the season as you will be able to play more friendly’s with more stamina,
All Players will need stamina to remain fit, avoid injury and to be able to perform for a longer duration during a match, (increased match rating)
Perception is important in both defenders and midfielders when it comes to set pieces, even though no quality gain is given, in defenders this will help with interceptions and forward passes, in midfielders perception helps with forward runs and the ability to win midfield headers.