There is no way we should take a guard if one of these guys is available. Having a potential pro bowl guard to plug in for 10 years (what you hope for with a first rounder) is attractive, sure, but I don't see how it gets us over the top this year. We already have Kilgore who has been learning the ropes, and the option of adding a proven vet through free agency.
Fleener or Hill would contribute immediately and help alleviate BY FAR our main weakness. They would put points on the board. They would make Alex Smith better.
As for Jenkins, if it's true what the scouts are saying--that he's a top 15 talent--we have to take him if he's there at 30. It's a passing league and we only have one top-flight corner, and we're merely crossing our fingers that age doesn't catch up with him soon. This could be our chance to solidify that spot for a long time. And if Rogers has another productive several years, we suddenly have a secondary that matches our front 7 in terms of pure scariness.