I saw this subtitle in a brainstorming document.

Problem:
“Suggestive” is the wrong adjective here.

Explanation:
The document contained notes from a meeting in which participants thought of ways to improve a company’s services.

The adjective “suggestive” means evocative; that suggests; rich in ideas.

“She wore suggestive clothing.” is an example of the appropriate use of this adjective.

“Suggestive” clearly was not what was intended for the brainstorming document.

The writer of this document was introducing a section that contained overall improvements that had been suggested by the meeting participants. This gives us the solution.

Solution:
“Suggested Overall Improvements”