As you know, I'm all about helping companies with effective "people practices." You're not alone if you don't know how to get started. Here's an easy one to implement right away.
And if you do this one thing, you'll be way ahead of the rest.
At your next leadership team meeting, print out this short article, "Rude, Late, and Unprepared: How to Manage Up the Soft Skills of Your Team," read it aloud as a group (so you're sure everyone has read it), and then discuss how each of your managers/people leaders will implement these best practices with their respective teams.
The message is simple yet profound: You shouldn't put up with rude, late, and unprepared employees. Yet, as managers, you are responsible for breaking bad habits and instilling in your employees the habits you want to see. Put a reminder on your calendar to revisit the article every six weeks to see how your managers are doing.
Let me know how it goes.