I'm interested in hearing how this is proven. I've seen incentivized sales reps close deals that damaged the company, just like I've seen "successful" marketing campaigns that eventually killed their products.
If you use bookings as your metric for bonuses and then turn around and use bookings to measure whether the incentives are working on a per-worker basis, you'll miss a lot of negative effects. If sales starts overpromising the product, sabotaging each others' deals, or even chasing after bigger but short-term customers, you could see the metrics improve as the company falls apart. And then there's the fact that, even within a department, you'll hopefully have a group of people with diverse motivations.
That's why I'm curious about how this model has been "proven".