NO NO NO.
Worst thing they can do is make a trade to "shake things up."
This isn't a veteran team that won it all two years ago and got complacent, then it might make sense.
This is a very young team that is going throw growing pains.
Stay the course, don't rush the prospects, give players like Franco and Joseph time to work through struggles (Joseph already has), etc.
Watching the young pitchers should convince you that rushing prospects is a bad idea.
The 2019 team is going to be loaded:
C: Alfaro, Knapp, Rupp?
1B: Joseph, Hoskins
2B: Hernandez, Kingery, Valentin
SS: Crawford, Galvis, Canelo
3B: Franco
LF: Pullin, Cozens, Williams
CF: Herrera, Quinn
RF: Altherr
Now obviously they'll trade a couple prospects by then, but no rush, wait until the right deal (some more young arms and/or a blue chip prospect) comes along.
The minor league teams are playing .600 ball with only a smattering of "ringers" (basically Tomascha, some RPs, Floriman in AAA), despite a number of prospects really struggling, which just shows how deep the overall talent is, and they had a deep draft and LA signing period, so rookie league teams could be very deep this year (number of players were held back for xST that normally might have been promoted to Lakewood).
If it ain't broke, don't fix it. I still think they'll get to 75 wins with a hot finish (if Nola is healthy).
Next year it gets interesting, in 2-3 years they're going to have similar talent to those 2000s teams, where all it took was a Hamels emerging (and a great season by Lidge) to put them over the top AFTER they gave away Abreu and made an awful trade for Garcia - shows you what happens when you hit critical talent mass.