Em, then, would come to Dre, listen to the instrumentals he made and choose the best ones, the ones who fit more to the lyrics/theme he was trying to develop.
I refuse to believe that Em had creative control on Recovery. Iovine wanted profit so much that he literally went for the most mainstream production possible. I can't imagine Em like "yo dog, I've been workin with Dre for the past 2 years, his production is great and it helped me to create a mood for Relapse, but... this beat is fantastic, I'm going to use it on a Proof tribute. oh, this one? good, that's going to be on my first single. I like this one too, let's call Pink for a powerful hook on this one"
Did Em actually had the power to choose the instrumentals for Recovery? Dude has good ear for beats, look what he chose during 1999-2009

Discuss.