Here’s small guide about attributes. Probably I’ll add more soon
*Composure*
Let's say if Central Defender/Defensive Midfielder/Full Back has Composure less than 11, this means if there's opposition player near him than that most of time he starts panic and do something stupid like clearing the ball to nowhere, if he has Composure about 14 and higher than he stays calm most of time and makes smart passes to his team mates.
Similar for Striker if he has one-on-one opportunity.
*Finishing*
This attribute responsible for accuracy of shots if player has Finish less than 11 then most of time if he tries place his shot it goes far away from target, if he has Finishing 16 and higher than most of time it goes where he meant.
*Long Shots*
This attribute responsible for strength of shots.
For example, if your Striker has Finishing 11 and Long Shots 16 than it can be a good idea to teach him PPM “Shots With Power” it will make him rely more on strength of his shot and not on accuracy as result more goals from him.
*Work Rate*
Thise attribute responsible for willingness of player to close down opposition players during defense If player has Work Rate less than 11, this means that most of time he will be standing off and doing nothing just looking like his team mates do defensive work.
If player has Work Rate 15 and higher than he will be like pit bull during defense and if he also has Aggression about 15 than he is deadly for opposition
*First Touch*
This attributes responsible for accuracy of first touch passes and shots. If player has First Touch less than 11, than most of his first touch passes and shots go far away from point he meant to.
*Passing*
This attribute responsible for accuracy of passes.
*Positioning*
This attributes helps player to choose excellent position during defense and cut all passing possibility for opposition. If player has Positioning less than 11, this means that during defense he will just stupidly running around and doing no harm to opposition attacking build-up play.
*Anticipation*
This attribute is very useful during attack and defense. This is how well player reads the game and it gives him advantage to react faster on though balls than opponent.
*Technique*
Let's say player has maximum number for Technique - 20. This means that he capable of doing 100% of the stuff what ME allow to do for player, if he has Technique attribute about 16 then he is capable to do 80% of the stuff that ME allow to do, if he has Technique about 11 then he cable to do only 55% of the stuff, if he has Technique 7 than only 35% of the stuff.
Any pass or movement requires minimal level of Technique for it.
For example, your Right Full Back has the ball and opposition player is going to close down him and in order to avoid tackling your Right Full Back need to make pass to your Midfielder but in order to make this pass he need technique about 14 but he only has 11 and this means that he will be tackled or just clear the ball to nowhere and as result you lost possesion.
Another example, let's say your playmaker has the ball and there's excellent opportunity to make through ball to striker for one-on-one but in order to make this pass he need Technique 16 but he only has 14 so this means no through to striker and no one-on-one clear cut for your striker.
One more example, your striker has one-on-one opportunity and there's only way to score to make cheap shot but in order to cheap this shot it requires for striker to have 17 Technique but he only has 13, so this mean no cheap shot and no goal for you.