I need some defense help

Hi
Im playing with a friend on FM16. he's Barcelona i am Real Madrid.

I have a real problem with my defense, i'v lost point in like 5 of my matches this season because i have let in goals from the 86min, and it's so fucking annoying..

I wonderd if any of you guys have some tips for me to better my defense?
Coutious
Carvajal - De Vrij/Ramos - Varane - Marcelo/Jorge

That is my defense.

Im normaly playing in a 433 with a DP and two ForwardPlaymakers

2 Inside forwards and a Complete striker

its hard to help without knowing your team/player instructions/shape/mentality. could you post a picture of your tactic and instructions so we can help. also how you are conceding goals would help too.

conceding goals late could come down to players getting tired. Are you making subs during the game? Also why are you making those subs?

it could also come down to the concentration of your players. check out the body language of your players(mid match) to see who has lost motivation.

Troy