If Sensabaugh is just middle of the pack at SS, that is a huge upgrade for the Cowboys. This guy can really run and cover from everything I've read and heard about him. He looks really fast to me. Plus, Rafael Vela's source, the guy that predicted that Scandrick would contribute right off the bat, said Sensabaugh can play. That same source gave a very good report on Allan Ball (at CB and S) and praised Courtney Brown.
Look at the FS spot before Hamlin in 2007. Watkins and Keith Davis were really, really bad in coverage. Hamlin was a huge upgrade in coverage.
I don't know why you wouldn't want that speed in your secondary.
The Cowboys have completely over turned Parcells' secondary now, except for one player. Terence Newman. Now, they have built the secondary around him (Newman) and have added some serious, serious speed to go with his (Newman's) 4.35 speed.
Speed kills, and the Cowboys have it in spades back there now.
Just wait until Jason Williams figures things out. He can fly.
The Cowboys have now completed the transformation from Parcells' power philosophy on defense to Phillips' speed philosophy.