Cubs make trade with White Sox, casting spotlight on work in progress at third base

Gage Workman? Meet the Red Line.

The Cubs traded Workman, the Rule 5 draft choice they DFA’d earlier this week, to the White Sox on Saturday, getting cash considerations in return.

That’s not exactly worth a breaking-news alert, but the move closed the book on the Cubs’ project with Workman, who was part of a revolving door at third base in the days after the team sent top prospect Matt Shaw down to Triple-A, creating a mystery at the hot corner.

That mystery has yet to be solved.