What happened: TPG Architecture's plan for MLS headquarters is built around an 'office as a stadium' concept.

Why it matters: Headquarters design matters because league offices double as branding space for staff, partners and visitors. For MLS, the project is an off-field marker of how it wants the business side of the league presented.

What to watch: Watch for details on the site's location, buildout timeline and when MLS plans to open the new headquarters.