Sometimes manager gets a bum rap. Like take last Ray start for instance. Dominating through 5, no reason to warm anyone up. Rizzo leads off HR. That gets your attention. Judge hrs, now you call to the BP. Two batters later is Gleybar, if he gets on base you prob pull Ray- but he happens to hit another bomb. Don’t really blame manager for that. Ryu obviously a little different but you can’t just warm guys up every inning
Edit: Well.. maybe today you can after 4 say. I agree Ryu needs another level of managing today