Caveman, I think if he wants in we have to take him. Gray runs a sub 4.4 (clocked at 4.37) and is tall enough where he can add another 15-20lbs and still keep his speed. From the film I've seen, he is great in press coverage and gets off his blocker and is excellent in run support. As you said Seisay is basically N at this point, but Sean Callahan has said we will take up to 18. With 8 commits now say by some act of God we got all 4 of these CBs we'd be at 12. That leaves room for six more. That's not a lot, but with Fonso leaving we will need all the DB's we can get. Not to mention, with all of the running teams in the BIG, our corners will be providing run support much more than in the Big 12, leading to the greater possiblity of injury.
However, I really don't think we get Beaver. He would be an awesome addition, but I believe he stays on the west coast. If we get Seisay, Rios, and Gray, our CB class would be very solid and I would be very happy.