Once again the age old problem of Messi as the main striker but almost point blank refusing to play further up the pitch cost Barca. Also once again, as has happened all season Fabregas is usually the man substituted and the team almost always gets worse after he goes off, and Barca were FAR worse when he went off. Fabregas wasn't having the best game at all, but better than most of that team.
Pedro is a player who, not comparing him to Walcott in quality at all, but in type, when Barca play well, he can look decent, but if Barca look bad, he's a player that can't pull the team forward and win a game by himself, a few too many like that coupled with Messi having a terrible game, and seriously, he was epically awful.
Start to finish Messi refused to play upfront, dropped deep, got the ball and never looked to play anyone in ahead of him, got the ball and then tried to take on 4 players himself for no real reason and he lost the ball very easily every single time, yet he never tried to alter his game. He didn't go "hey, this isn't working, I might play as a striker to help the team today", he just kept trying the same thing all game.
I don't know if they honestly have the balls to do it, but Barca needed to sub Messi 10 mins into the second half, and put someone in actually upfront as a striker.
Awful performance, but Barca frequently play in the same way but then Messi will have a 5 minute spell where that running through the defence works, and gets a couple goals.
I've said for 4 years, Barca are by the game becoming a less direct, and more passive team with Messi for ages now doing this "I'm a striker but I don't like actually standing near the defence" thing.
Compounded by one of the worst ref's I've ever seen, a yellow for biscuits, for sliding in, being on the ground, getting the ball before the Milan player even got there, and thats it. The first goal not being given as a handball... lol, almost every decision he gave was wrong.
Overall Barca's biggest problem is giving in to Messi, Ibra's account of what happened is, Messi wanted to play through the middle, so Ibra went bye bye as the manager passive aggressively ignored him till he left the club.
Barca won more, and were more exciting to watch with Messi on the right and an actual striker upfront. Messi is scoring more, he had the best ever season and broke the calendar year scoring record.... yet Barca failed to win the league or champs league in the same season. The team is built for Messi to be the best Messi can be, not built to be the best the TEAM can be, and Barca are so often boring as hell to watch now.
Did Real decide to focus on Ronaldo, push him upfront and get Ronaldo more goals, no, he's epic on the left, and the team plays great with him there, the team would lose something without his drive down the wings.