I think we will be able to point to many individual short comings this season if we miss the top 4. Sagna has had an awful season and has admitted himself in the French press that he has not had a good season. He cost us points in more than the Man U game. Giroud has had a number of easy chances he missed that could have made all the difference the most recent ones against Everton, those extra 2 points would have been gold right about now.. The big Pole has been beaten from outside the box all too often this season (perhaps the reason Fabianski got back into the squad?). And not having cover for Gibbs until the second half of the season cost us as well, not in the least because of Vermaelen losing his confidence when he was played on the left back position.
Too many of our players played well below the required standard for the club this season. Most of these failures in the squad need to be shown the exit door and adequate replacements brought in this summer if we are to make progress in the coming seasons.