(I know I'm replying to an older post but hope this is useful)
Current school has VLE in Sharepoint and it is simply a repository for information and files. Homework assignments are notifications. Everything is public. In my own opinion it's not a suitable platform as a VLE. You need students to be able to upload their work securely without seeing other student's work and for individual conversations to take place between students and teachers. Microsoft Teams does offer some of this functionality but I would compare it with Edmodo, Google Classroom and others (Firefly etc) to see what would really be required by your school.
