I've said the responsibility is collective/shared on quite a few occasions. You seem to think that means no responsibility. Think harder.
He has managed to survive all this with his job intact and that suggests to me that he is staying onside with Sadler. Doing as Sadler wishes. Referring key stuff to Sadler for decisions. Which I'd expect. It's up to Sadler to stump up the money for Brannagan. He didn't.
Sure. So he failed a medical or there was a change of heart. I'm not convinced it was a bad decision and I don't know whose decision it was.
My suspicion is that the way the club is run is down to Sadler, and Mansford is a posher, despite being from Hull, Matt Williams. Being paid (much better than Matt Williams) to do all the donkey work, and to shield the owner to some extent. Take the flak from the peasants. You lot.
But referring all key spending and recruitment decisions to the boss. Working together but one man firmly in charge. That's how it seems but I don't know. If Ben is in sole charge of recruiting managers then he's not very good at it and should lose that job or his job perhaps. But he's hanging on in there which suggests that Sadler doesn't hold him ultimately responsible. To me it suggests that anyway. Quite a few people have left the building since Sadler took over but Mansford remains. I think I can see how it works. Roughly speaking. You have to stay on the right side of one person in particular.
Karl Oyston had the wisdom to bring in Jimmy Armfield to help with manager choices. To either use his advice, or to absolve himself of criticism of it went wrong. Knowing Jimmy would never speak up in public about it so he could still do whatever he wanted. We've no idea what happened there either.