Here are a few ways to rewrite the title “Everything you need to know about the new NHL-NHLPA CBA,” with varying degrees of formality and conciseness:

More Concise:

• The New NHL-NHLPA CBA: A Complete Guide
• NHL-NHLPA CBA: Your Guide to the Changes
• Understanding the Latest NHL Collective Bargaining Agreement
• NHL CBA Explained: What You Need to Know
• New NHL Agreement: Key Details and Impacts

More Explanatory:

• A Deep Dive into the New NHL Collective Bargaining Agreement
• Your Comprehensive Guide to the NHL-NHLPA CBA
• What the New NHL Labor Agreement Means for Players and Fans
• Demystifying the NHL-NHLPA Collective Bargaining Agreement
• The New NHL Collective Bargaining Agreement: Key Changes and Implications

More Engaging:

• Decoding the New NHL-NHLPA CBA: What’s in it?
• The NHL’s Future: Understanding the New Collective Bargaining Agreement
• Inside the New NHL-NHLPA Agreement: A Fan’s Guide

The best choice depends on the target audience and the overall tone of the piece. For example, a shorter, more concise title might be better for a news article, while a longer, more explanatory title might be better for a blog post.