Hi there

i´m willing to help in what i can. Started recently new season with Atletico Madrid but like you i´m still playing friendly matches.
Before entering team/individual instructions let me give you some advices:
- sell RB Seitairidis (6M) and DMC Luccin (5.5M)because both have high wages and you should prevent red bank balance;
- don´t sell Perea, Antonio López, Pablo or any other defender...try to maintain important spanish players;
- don´t sell Maxi Rodréguez less than 20M or at least try to change with another player: Example: Maxi RodrÃ*guez for 15M and some nice DMC/MC. Same for Petrov, try to keep him because he´s top class.
Team
GK: Leo Franco
RB: Perea (more defensive); Juan Valera (more ofeensive);
CD: Pablo
CD: Zé Castro (Perea too at right side)
LB: Antonio López/Mariano PernÃ*a (free kick specialist)
MDC/MC: Costinha (buy another one after selling Luccin)
MC: Maniche/Gabi
AM R: Maxi RodrÃ*guez/Luciano Galleti
AM L: Martin Petrov/José Jurado (but you should go for another AM L more agressive and defender minded)
AM C: Aguero/Jose Jurado
ST: Fernando Torres/Mista
Formation
4x2x3x1 with Costinha and Maniche at MC position but Costinha with mentality < 10 (between 6-10 depending opponent and result). I put wingers like your image proves, with starting RM/LM position with forward arrow to AM R/L. Finally, play Aguero as AM C (free role) and if you need desesperatly to score goal give him attacking mentality (slider 14-16) or give him short forward arrow.
Atletico have good players: nice defense (don´t sell those spanish, they´re great), 2 skilled wingers and Aguero/Torres society. But, if you play 4x4x2 must times team will break at midfield and tactic will change to 4x2x4. Try playing more defensive minded, maybe ticking counter attack box and take more time to set individual instructions.
Later i´ll add more information. Hope it helps