Anyone who has played football in real life knows that stamina is one of the most important things when you wamt to play a quick, passing game. When you get tired, your brain doesnt think clearly, your legs stop listening to you and of course just the overall level of concentration drop. This for me is the main issue with our team at present. We play the first 35 minutes of every match in a great fashion, the at the last 5/10 minutes of the first half we drop a little, then at the start od the second halves we play good again, and after the 60th/65th minute we just seem to stop playing our game, our players start making these ridiculous beginners mistakes. At least thats what i noticed, and my opinion is that its because our team is quite old and our players are not so physically well prepared. It seems that our collective stamina levels are very low except, of course for Matuidi but he is just an exception.