High Value Players not performing 6-7-5-5-6 stats etc what do you do with them?

[mmunger]

If you are unable to make formation changes that accommodate players and find that boosting morale does little for performance, train them to boost their quality and sell when they have enough value.

Sometimes, a player does not deliver and you have to manage your team accordingly.

Sometimes, guys perform better than their quality level or value will suggest. I keep a three-star striker because the guy scores and does well on a regular basis.

Your mileage may vary.

Also... can you share screenshots of his skills and statistics?