I think that they have only had one aircraft recently for training as the new one when delivered was put in the hangar for modifications to bring it up to the full "BP Jigsaw" standard. Don't know how long it all takes, but certainly the first aircraft wasn't seen for a few weeks after it was delivered for the same reason.
As for lack of skills, I wouldn't like to comment, but I did hear that two experienced SAR pilots left because they didn't like the conditions they would be expected to work under (I assume that they were different to those mentioned at initial internview).