Our SP'ing has been our weakest area this year, and you want to take our best starter and move him to an area that has been a strength this year.
We have no SP'er to take Sale's slot in the rotation.
It's not Sale's fault the team won't score enough runs in his starts to help his w-l record. Sale has been one of MLB's best SP'er over the last 2, 3, 4, 5, 6, 7,...years. He's been a top SP'er since his poor start.
The only stat that matters to you is the full 2019 season numbers and W-L record?
Sale is a SP'er and should remain one. This is "common sense."
Now, if you want to make Eovaldi the closer, there is some "sense" to that idea.