Best picks for 49ers?

The 49ers needs a great right tackle to protect Alex Smith. So at the number 12 the best right tackle that could possibly available is Trent Williams from Oklahoma. At number 17 they are more likely to go after a cornerback. They really need to help their defensive backfield. So if they get lucky Joe Haden of florida might slide down that far. But also Kyle Wilson a conerback of Boise State or Derrick Morgan a defensive end of georgia tech would definitely help that p defense. They can also go after the safety from USC Taylor Mays.