He's the boss, he's responsible. And my opinion about him knowing about Leinders is just part of the lies. Verifiable lies are made about the tenure of Leinders. That's not my opinion, that's simply factual.
Why do I despise Dave? (note I would amnesty him along with the lot)
1. The guy hiring the staff and medics is still there.
2. He acted against his own ethical mantra.
3. The doctor he hired really is bad news.
4. How he got to the decision is exactly the important point, not to be dismissed as you seem to do. Everyone could point out the rotten apples, yet he did hire them. He should have chosen different people or be open about it from the start.
So to sum it up: if you don't drum "we are zero-tolerance", I can't be mad at employing people with a past. But if you beat that drum and then apply crooks like Leinders and Yates... well, you deserve all the scorn you will recieve.
What's also important is that there is absolutely no control scheme in place. All I can do is believe Dave on blue eyes. the problem is that Dave is not in the habit of telling the truth. On a bizarre note... Dave himself denounced people who lie as they are used to lying. It was a rather surreal interview.
Lastly, you might only read the Sky threads, but I have a habit of pointing out rotten doctors (hello Doctor Menuet, hey Doctor Massimiliano Mantovani , hi there Marco Pallini).