A few pregame observations:
1. Nats load 6 lefties and a switch hitter into its line up vs. righty starters. Spread the righties and switch hitters behind 2 lefties each.
2. Seems CJ is now a middle of the order bat in Toboni's lineup. Luis is a career .275 / .311 / .434 hitter vs righties, with better pop than that last year (ISO .188). CJ is a career .261 / .320 / .442 vs RHP, with an .809 OPS last year. I think Toboni wants to split Wood and CJ to avoid a team from throwing it's lefty specialist at Wood, although you would now think that specialist would line up against Lile and Abrams. Wood's OBP drops vs lefties, mostly due to a drop in BBs (at least that was the case last year).
3. Wiemer is somewhat protected against lefties batting 9th. Not only is he between 4 lefty batters, but at 9 it's unlikely he will see a righty 3 times, and a decent chance he will not see one twice.
4. Longer run, I'll be interested in seeing whether Vivas stays near the bottom if he starts getting on base.
5. CJ can probably run more with Millas and Tena behind him than Wood and Lile.
6. Walker is a pitcher who fairly consistently beats his defense independent pitching numbers. Low Ks, average BBs, a bit homer prone, with decent BABIPs.