I vote for "meh." Truly good managers are as rare as truly destructive ones like Dusty; most just fall into a big stew of mediocre. The failure is in the crappy team.
Look, obviously it's a tiny sample size, but let's not pretend a ton of people here weren't drooling over this guy. Hell, I don't care if someone prefers Soler (I do myself); I still view it as a failure right now that they didn't pick up both.
Yeah, I'd be really disappointed if they moved Garza at this point. Counting on a strong pitching FA class is pretty stupid with the way things are going.
I don't think "blowup" means what you think it means. It's pretty hard to "blow up" this team any more than it has been, and I highly doubt what few older players they still have will be around if they have any trade value. "Doing worse" does nothing to change that; this wasn't a team built to depend on holding on to anyone currently on the 25-man roster outside of Castro (and hopefully Garza).