You can clearly see from this clip that, when the ball makes contact with the ground, it flips forward in Coale's hands. He did not have posession.
http://www.youtube.com/watch?v=b0Xh8MlPw38#t=00m47s
I was hoping someone could make a GIF of this that we can post on forums as evidence that the right call was made.
Edit: Here's one I just made, but it's grainy. Perhaps someone can make one that's more clear. This really is the best angle.