Cora's one of the best managers in the league - he doesn't have to prove anything there.
For me, the watch item all season is going to be the defensive metrics. We are still in crazy small sample size theater so far, so nothing conculsive can be had. But on paper, this team should be more like "average or better" - which would be a huge upgrade over "Actively harmful" like they were last season. That alone could add a few wins ... and if it allows the pitchers to not worry about being super fine with hitting spots, so much the better.