Having a better hitter, defender, framer, and game caller for the rest of the season and playoffs makes a real difference. If you want to pick nits at 'significant' have at it, and like I said before I'd rather not because of the cost, but the improvement is undeniable. Every season is at the mercy of a handful of pitching elbows and shoulders staying intact and productive, so there's definitely appeal and benefit to capitalizing when we know we have those lined up. Theo said almost exactly that after the Chapman deal. I still think the Chapman deal was ill advised (but I'm gonna enjoy what he does on the field while he's here) and I think, if you put any stock into what the playoffs odds and the projections (very much the same type of thing you're using to show the gap between Lucroy and Contreras for ROS) say, 95ish% is just that. And then the playoffs where I still believe you can't do anything to beat the fact that even a great team has to go through 3 gauntlets where they have at least a 40% chance of ending up dead each time.