I imagine he is deeply frustrated that the lads earnt a lead but threw it away. He has all season remarked about the need to start well, react better and there has been evidence over the past few weeks or so of the agression/style he wants being displayed.
To go a goal up and then cave in isnt his fault. Its the players weak fragility again.
It goes against everything that he is asking of them and what they have been working towards. Its child like and must be so frustrating. It frustrates us. Why isnt Ronald allowed to be annoyed?
This is why I feel his anger is more directed at the players than at the board, his comments about 'an 18 year old being the best player' is telling. I think he's making a point to the board too but I feel most of it was directed at the players.