IMO Pedersen is Blackburn's best player by a country mile and he is only orange on the position you are using him in. If you want to stick with that formation, I'd sell him for 10 million and find the right replacements but tbh if I was you, I change your tactics and build the team around his qualities.
You'll get a lot of goals via his throw in onto Samba's head if you set it up right.