At my company, we are transitioning (fully) from ClearCase UCM to Git. We will not be using Clearcase after some time using Git.
In the transition, are there any go
At least, with ClearCase UCM, you have full baselines to work with, that is labels which are set on all the files of a given component.
By experience, you never import the full history from ClearCase to a Version Control Tool which is based on revision across the the referential (see the difference between ClearCase and Git: ClearCase has an history set file by file, not "revision by revision")
What I usually do, as I mention in my answer "Sync GIT and ClearCase" is: