We want to see Kershaw today, right? If they go Urias/bullpen today they're probably slight favorites both today and in the possible Kershaw/Scherzer rematch on Thursday night (based on line from Game 1). Taken together, Kershaw on short rest + Urias/bullpen game or Rich Hill on short rest seems preferable to Urias/bullpen game + Kershaw on normal rest.
I understand the media and clubhouse pressure will be on Roberts to start Kershaw today but I think that works in our favor.
I'm also not sure why there's any confusion about who should start for the Nats today. Ross is used to starting and has the perfect demeanor for a road start in a huge playoff game. Lopez has shown he can be effective in long relief out of the pen, which Ross hasn't really done. Seems like a no-brainer