I think Doolan deserves some leeway. Last season's run was spectacular. I think he's bright, positive, brave and a good communicator and has lots of good attributes to be successful. He also has the whole legend thing, which is maybe worth something (but shouldn't be overplayed).
But I also think he's possibly a bit naive as a manager, and has a lot to learn. This is natural, given that he's been thrown in to his first job with minimal preparation. As long as he learns, and I think he's the type of person who will, I have confidence.
But he must accept that yesterday was unacceptable. I don't mind losing to a better team, but that was an embarrassing and indisciplined collapse.
As a squad of players we are much better than that. I wouldn't read too much into our capabilities, based on yesterday. I still think we're definitely good enough to finish in play off. But the attitude yesterday was beyond questionable.
Regarding comments on Harry Milne, he'll come good again I think. You don't just become a bad player, but you can lose confidence. I suspect that's all it is, and a few decent performances, and breaks, will see him right.