Biggest problem, would be communication and being accessible for all. We have many all over europe with their own language and this also meant their own sign language. Each countries has their own signs. Surprisingly, not all of us know international sign language.
With time and patience, we quickly adapted and adjusted to all our team needs to be able to explain strategies and tactics.
We have a team working together to create videos, with sign and subtitles and we have each person from each country translating it into their own language.