Sys he pinch hit Ibanez for Willingham, when not pinch hitting, or using Butler or Cain are all far better choices, in the most crucial moment to that point I can remember as a Royals fan. It was inexcusable, and me pointing out the blunder that it was along with the foolishness of him sacrificing Aoki twice early in the game were pretty rational points. Yost's comments after that he wanted a "professional at bat" were obviously implying Billy isn't capable of a "professional at bat" whatever the heck that is. Yost put his own vendetta against Billy above the team, and it was inexcusable. Yeah I go over the top sometimes in my meltdowns, but I always back up my opinions.
yeah, he does ridiculously stupid things. he also fired a really good batting coach for no good reason (as you've pointed out multiple times recently). there are lots of reasons to hate yost. or to lol @ him, depending on your personality.
but you don't restrict yourself to criticizing his unambiguously stupid decisions. you also attack him for things that make perfect sense and stuff that is really just a coin-flip decision either way. there's nothing at all wrong with playing willingham over butler. and irrc, you were also yelling at him nonstop for playing aoki, or for hitting him high in the lineup or something- right before aoki decided to hit like .700 over the last week or whatever it's been.
regarding the sacrifices - aoki has been hitting great lately. but i believe the data indicate that sac bunting to get two runners over is pretty much a coin flip vs letting all three batters hit. so the second bunt was not an indefensible decision. the first bunt was purportedly aoki's decision. i don't know what to say about that. it's weird. the royals are kind of a weird team and aoki seems like kind of a weird dude.