Luftstalag14
Culé de Celestial Empire
In part, the problem for Messi is that he formed himself as a player playing in the greatest football team ever, with 2 of the best midfielders of all time, and one of the best right backs of all time. So he was kind of used to move less, conserve energy, knowing that the ball would get to him in the right spot, with the right pace, just the way he wanted it and the way the Barca style demanded to happen. Playing with prime Xavi, Alves and Iniesta makes your job so much easier you wouldn't believe. Now he is a position where the service he gets is of way lower quality, the difference is like night and day. Passes being made towards him are struck too hard, either short, either too late, or with the wrong angle, all sorts of passing problems, that he just didn't have at Barcelona. This delay is critical because it allows the opponent to prepare and block him better.
The fact that Messi carried Barca back in the day is the most idiotic idea I've ever heard. He had a lot support. Like really a lot. Now that's gone, and he declined physically (that's clear, he's way slower and less explosive than at his best) it's unsurprising that his performances aren't the same against the big teams. His fans say he's more of a playmaker now, picking passes of genius left and right, but that mostly happens against weaker sides that aren't defensively disciplined. Top sides and hard working teams who put in big defensive displays aren't that impressed by playmaker Messi. They can isolate him and crowd him and force him to play safety passes.
He can get around those issues and continue to be decisive, but in the absence of great service, you basically need to compensate that by being more motivated, working harder off the ball. In short, making himself available more, rather than just assuming that the other players will do their job and will find him with clever passes. Again, he ain't playing with Xavi, Iniesta, Alves, Villa, peak Busquets, Eto'o, Ronaldinho, Henry etc. Solution is to stick to a more advanced position, put in more intense effort and don't try to cover a lot of ground.
I'd move him back on the right, not hugging the line, but playing as a forward coming from the right side in on his left. This Messi that drops deep and acts like a no10 midfielder, a la Pirlo, ain't impressing me.
Agreed with your first paragraph 100% but I thought the second paragraph was quite off-putting. I don't think there are many who said Messi carried the team back in the Guardiola days when we had the prime Xavi, Iniesta, Busquets and Alves etc. Clearly he benefited from playing with great players (who wouldn't?), but to diminish his contributions is silly. I think most of those who said Messi carried the team were referring to the last several years when we had a declining midfield, to the point of abysmal midfield we had sometimes, that Messi had to drop deep and help create, something that he didn't have to do in our prime years.
It is a fact that Messi created a lot of chances in the last several years, there were stats stating that Messi was among the top in Europe in terms of number of chances created, to the point that Messi had been ranked as one of the best playmakers in Europe consecutively in the last several years. Of course you can say most of the chances created were against weaker teams but isn't that the case for all the other playmakers or players who created a lot of chances? You can't use that to dismiss Messi.
Messi's problem other than those that many have stated (stamina, lack of off the ball, mentality, inconsistent effort etc.) is, to me he has become somewhat predictable in his approach to penetrate defense. He either dribbles through or he tries to play one-twos. His dribbling is getting worse as he declines so he can't always dribble through opposing players any more. And he often found that he is not always on the same wave length with his teammates when he wanted to do one twos, especially when he plays for Argentina. The two best players he used to do a lot of one-twos were all gone (Dani Alves and Neymar). So unless he tries different things and approaches he will fail more often than succeed with those two methods.
The rest I agree with.