Jamal Adams ... Adams at SS and Micah Hyde at FS would make for pretty decent set of starting safeties. Having Poyer come in as the #3 safety would be solid depth.
Since I don't believe that Adams, Allen, Foster or Hooker will be there at our pick, I'd probably go with Mike Williiams who seems to be really good at fighting for the ball, which will likely be necessary with our QB's.
Trading down a few spots and taking Davis or Howard wouldn't be a horrible idea either.
I still like Watson though, even at #10.