Winker is the player so far that sticks in my craw. He was traded for a flier up down/RP type prospect, who we have a million of in the system. He makes no money and while he's not a solution after the season, he would definitely have decent impact as a rental.
I think you can nitpick some of the guys on the market like Thomas. He could help, even at the level he's been playing at this year, but if he regressed further, he'd be pretty similar to the pile of "not good enough" that we have now. In a vacuum I like his speed upside and for the power to maybe come back a bit, and I like him more than Ward as a player, but if Ward ends up being a decent bit cheaper, I'd rather see that.
There's no defending BC's inaction, but I don't think it makes sense to say it's because he hasn't acted yet. The deadline always comes down to the wire like this. If he does absolutely nothing else other than sell of Chapman, then the inaction critiques will be spot on. I also don't think the Priester/Yorke trade adds up to a framework of being rushed or some backup... it's pretty classically a low key, equivalent talent need for need type deal. If anything it looks pretty good if you trust that Yorke will keep hitting the ball hard and translate his game to MLB (though the big bad caveat for me is that it seems like he doesn't loft the ball as much as would be helpful... not exactly a problem the Pirates have been able to fix).