Thanks Jeffrey...

however in the scenario you described, doing a native SQL backup and putting it into an agent job is still the best solution. All you have to do now is call the job from a PS script. This way the DBAs can support the job from their end, and the OPs guys can support it from their end. And you still get all the benefits from having it in SQL.

Just because a process can use PS doesn't mean the entire solution has to be written in PS. You can use it just as a step in the process.