My concern with Baker is age. If Nats collapse and miss postseason he's out for sure. If they lose again in NLDS, it isn't a given either way. If Nats make it to NLCS or World Series, then I'm all about bringing him back or even elevating Speier if Baker himself decides to hang them up.
Baker has managed a clubhouse that has been devoid of stories after it got out of control during both Riggleman and Williams. He's managed thousands of games so no worries about his experience. I haven't seen his reputation to burn through pitchers pop up here. Nats aren't bunt happy and they used shifts as needed so it seems like they've embraced analytics.
My opinion is the majority of baseball managers are pretty average. Maybe a couple are better or worse than the others, but analytics have standardized a lot of decision making. My biggest concern is a harmonious organization and it seems Baker has that going.