Sale just signed a long-term deal. He won't hit free agency for years.
Trading your young, cost-controlled ace pitcher isn't the only way to fix the mess, and makes the mess worse definitely in the short term, and likely in the long term as well. It would be like the 1989 Sox dealing Jack McDowell.
Thankfully we have a couple more decent pitchers in the pipeline, and have done a good job producing pitchers, so the "pitcher development system" doesn't need an overhaul.
But we need to fix our position player development system. Build through the draft, and develop draftees better. Augment with international signings.
While waiting for the system to produce players, sign/trade for stopgap position players who can field their positions well.
The universe is the practical joke of the General at the expense of the Particular, quoth Frater Perdurabo, and laughed. The disciples nearest him wept, seeing the Universal Sorrow. Others laughed, seeing the Universal Joke. Others wept. Others laughed. Others wept because they couldn't see the Joke, and others laughed lest they should be thought not to see the Joke. But though FRATER laughed openly, he wept secretly; and really he neither laughed nor wept. Nor did he mean what he said.