> If a change triggers a change in multiple repos, it is easier to review those changes for completeness and administer them (commits/rollbacks to the code) in

> If a change triggers a change in multiple repos, it is easier to review those changes for completeness and administer them (commits/rollbacks to the code) in sync if the are in the same repo. This sounds like what submodules are for. A and B depend on C and C is kept in its own repo, referenced as a submodule by A and B.