Knap tactic see below, I changed the corners and throw ins from the original if I remember correctly. Just make sure when you plug it in its correct as the images below. The better your players the more you score.
Corner setup left/right side: (should be your best taker)
I'm currently managing Celta. I'm doing pretty well. I have to sign decent defenders though(higher pace and a higher current potential) But I had alot of succes with bigger teams so far. With big teams u shouldn't struggle at all. Another tip would be if you feel u are not dominating the game...