Workflow for Locking Progress Notes

We are trying to improve our workflow for progress notes being signed in a timely manner. Our current workflow is: Providers will do their part on the note and not lock/sign, it then goes to HIM for their part. When they have completed coding she sends an email and the providers will batch lock/sign the notes. The problem is this is taking 3 weeks sometimes more to get done. The breakdown is happening while waiting on the providers to lock/sign.

Is this the workflow you are doing or do you have recommendations to help our providers sign in a timely manner?

Thanks,
Tim