3-4-3 vs 4-1-3-2

Hello, I am currently using 3-4-3 for my team and doing great, I'm currently a level 2 manager.

Should I change my 3-4-3 formation ( classic ) for this ? http://i514.photobucket.com/albums/t...mers/poza2.jpg


Even if I am pretty happy with my performances, I think I may need to change it because 3-4-3 will not work anymore on higher levels.

Please tell me your opinion, which formation I should choose and why.

Thanks.

If your winning stay as you are why change a winning team ? But the 4-1-3-2 formation has far too many arrows !!! I would recommend using AML & AMR tho in your team as they attack down the flanks ???