Hey LFCMarshall, some more suggestions...
FC Barcelona
Dani Alves - AMR to accomplished because sometimes he plays in an advanced position
Fabregas - AMR/AML to competent because he has deputised in those positions recently due to injury
Iniesta - AML to natural, sometimes plays wing to accommodate Thiago
Thiago - CM to natural
Puyol - RB to accomplished, is his secondary position
Messi - AMR to natural, was his position before going central
Mascherano - CB to natural, plays there very often
Adriano - Improve his defending, is a catastrophe in my save games (always have to sell him)
Cuenca - Improve CA/PA due to recent form
Tello - Improve CA/PA
Pinto - Slightly improve CA
Villa - AML to natural, a striker *** winger
Keita - Slightly improve CA/PA & CB/LB to competent, very underrated and can deputise down back
Make Mascherano slightly worse and Busquets slightly better to reflect Busquets being 1st choice DM
Tottenham
Bale - Natural AML