Workflow Transition Permission - Peer Review Block Creator

All,

My company has decided to use peer review for the final approval for all drawing. I'm trying to setup a scalable workflow that will allow me to grant a group permission to run a transion, but block the original creator of the file from approving their models. Is there a way of accomplishing this without too much of a headache, so that I can add\remove easily.

Thanks,

SolidworksSolidworks Pdm enterprise Pdm