Incredible result

[Nicky]

You got everything wrong from the start! After winning 1-0 away, you should of known its not easy to eat him alive. The return leg you should of played 4 at the back and push the fullbacks up for overlaps instead of going 1on1 against him on the flanks but leaving your ST facing 2 DC and DMC coming back. You have much better team but you changed your formation to try to win against an underdog when it should have been his job. You changed your formation but you basically just followed basic rules. 3 DC against his lone ST. DMC to block his AMC, 3 MC in midfield against his 3 MC, avoid the middle since he has a DMC. You had better chance putting 2 AMC against his 1 DMC than going to the wings. If you say you always play on the wings then you totally forgot that fullbacks are critical to have with wing attacks and defend against counters. I beat a few team 10 quality + above, its normal!

Yes, maybe I managed my formation very basically but why is it a mistake?
We have a table of counter formation that should work.
Does a 26,2 team (with +13% ball possession) against a 15 abandoned team really need special tactics?

And, however, I've changed to 4 at the back after the first half.
I lost while my formation was 4-1-3N-1-1, moral and condition at the top, normal mentality and passing mixed.