In his “State of the Mets Mess” address last week, Steve Cohen exonerated Billy Eppler and Buck Showalter — for now — but also made clear his intention to hire a president of baseball operations after the season to address what needs to be done with this $344 million disaster of his. Cohen said he didn’t know what the reason was for the Mets’ pratfall; that “there’s plenty of blame to go around” — which there is.