The loss today is only a small part of the problem, they can happen in pre-season.
The issue is that he doesn't seem to have any kind of plan, where is the pace and fast, attacking football?
He said before he started he was a huge believer in 3 at the back, in most of the friendlies has played 4-2-3-1 and today switched to 4-3-3, quite confusing for the players I'd imagine.
The worst of his problems so far has obviously been at the back, he's had Gunning all pre-season and still hasn't made a decision. We don't seem to have been linked with anybody and bringing a couple of sub-par trialists in so late suggest he's panicking a bit.
Also, what was the point in bringing Hiwat in on trial if he didn't bother bringing him on today?