Most of my players also have 3 positions - but I agree, that DL/DC/DR are wasty. I train/buy them: DL/DC and DML or DMC... same to midfielder: ML/MC and DMC or AMC or DML or AML. But that's, because I only play new version and so they get 1-3 keyattribute additionally. I prefer that my Defenders are able to cross AND pass well. ;p