Messi's lack of effort is REALLY bothersome to me, but moreso is that incompetent board, who have gotten away with so much for years and throw everyone under the bus, taking responsibility for NOTHING (I don't blame so many of our staff/players for wanting out).
Many who are blaming Tata may not realize that he is nothing more than the latest fall guy for the board, something that became quite obvious after his tactics were denied by club and players. The board aren't as brilliant at throwing people under the bus as they believe. I'm not buying anything they are selling.
Still, Messi and countless other players have a responsibility to play with effort at least. Players are due streaky bad performances because they are human, but this whole making excuses for covering less ground than your goal keeper is also pretty ridiculous.