KISS (Keep It Simple Stu...)
Keep it simple, keep it linear, keep it single track, keep it accountable. Manage expectations, internally and externally.
Workflow management is no place for interpretation, deciphering, guessing or confusion. There has to be a Zen to the flow. Simple processes work. Complexity is not organization. Make the track of any job a straight line. If anyone is involved, everyone is involved.
The simple approach keeps everyone engaged. Everyone knows what to expect and when. Where is the job in the process? Who's currently got the ball?
What happens next?
A single track saves time and money. Don't waste billable hours wondering what's going on. Everyone knows who to talk to. When you are the current step, if you have any questions you'll know who had it last. Talk to them. Work as a team. Keep progressing. Complete each step. No backtracking more than one step.