Actually, I'm not so sure about Tisdale last year. I seem to remember him getting burned a number of times going for the interception, and putting himself completely out of position to make the stop. I'm not seeing that this year, so either he's learned when to go for the INT, or the different position isn't allowing it. Or maybe he's only doing it when he knows someone (Shivers?) has his back?
As for Shivers, I thought he played a pretty good game Friday. He got burned deep once, but the rest of his game was solid. Even the "waving his hands in front of the receiver's face" play that someone else mentioned on this(?) thread. On that one, he was right with the receiver, turned and looked at the ball, and then prevented the catch. Isn't that his job?