The scene bore all the makings of a normal press conference: Harbaugh standing there in a sweatshirt and khakis with his hands folded, speaking with as much of a filter as he can muster and giving short responses to injury questions. Rarely, though, has the Michigan coach been as direct as he was Monday afternoon. He took responsibility, and so did the players. He said, repeatedly, that the performance wasn’t acceptable, and that it starts with him. He said the effort wasn’t there on Saturday, giving the requisite cliches about believing in his team, with the caveat that, in all areas, things must improve — no excuses and no way around it.