I imagine this is the team we are going to see for the next two weeks, both losing and winning 3-2 and 2-0 games - and probably not winning a single series between now and the A's at home (at Chicago, at Atlanta, Dodgers at home. If Harper and Schwarber are back for the latter that will help a lot).
Swapping Buddy Kennedy for Merrifield isn't going to change that (though by all means, do it), and you can't lose Pache until you are sure Rojas is finishing the year as your starting CF (or someone else is your starting LF) on August 1.
But, go get the split today.