The hardest thing to explain is the glaringly evident which every had decided not to see.
What challenges does your distributed team have? Are they failing to meet some expectations? Are they having trouble working as a team? Is team morale a problem? Scrum can’t fix every problem, but it can bring them out into the open where the team can evaluate and correct them. Scrum puts challenges under a magnifying glass. As the image under the glass grows larger, they scream for attention, and your team’s performance will improve after they address the challenges and correct dysfunctions.
In the ideal case, a distributed team has a mix of skills at each location so they can work and make progress ...