Hi this is the first tactic I have had consistent success with. I know I was Valencia but I've been big clubs in the past and struggled for trophys. The purpose of this tactic was to make the most of Valencia's strengths, namely the world class wingers, paper over the limited options up front.
In my first season I won the League and the champions league, the following season I won the league, world club, euro super cup and reached the final of the champions league. I'm not saying you'll win every game but in 3 seasons there has maybe been just 4 games where I have been completely out played.
I tend to tweak the mentality down a couple of pegs when playing sides from mid table upwards at home and most sides away from home. If I'm playing the likes of barca or real then I tend to opt for a little more caution and often start with the wingers sitting deeper along side the 2 MC.
Feel free to give it a try, and let me know how you get on. But do remember you really need 1 handy forward and decent wingers to link him with the midfield.
Tactic 
Making the most of your wingers 
Linear Mode
