You can take a national team coaching job while continuing to manage your own club.
This specific file is likely the version from GOG.com , which offers DRM-free games. WE.ARE.FOOTBALL.National.Teams-GOG.zip
For a quicker experience, you can play a single tournament in a standalone mode without the full club management experience. You can take a national team coaching job
Enhanced talent development, transfer market tuning, and more detailed finance and salary stats. General Game Context transfer market tuning
Participate in international competitions like the World Cup and European Championship for both men's and women's teams.
Along with the national team content, the DLC includes several technical and gameplay updates for the base game:
Option to limit playable countries at the start to speed up play on less powerful PCs.