How has he lost his marbles? I don't agree with his selection policy and many of his tactical decisions in games, but he certainly hasn't lost his marbles.
I like Van Gaal and wanted him to be a success. I think he was in his first season, and I think he could have been this season.For whatever reason, things have not worked out. Up until a couple of months ago I was convinced he was the right man, so realising he probably isn't and reaching a point where his sacking seems imminent, I have nothing but disappointment. This is not like the season we sacked Moyes for me.