IMO, the locks at corner are: Smith, Wright, Powers, Young, Davis (although Davis may be considered a bubble player, I think he makes it).
The guys fighting for the last spot (or two) are Brown, Canady, Price, Arrington
I think Arrington is as good as gone, and Canady also has an edge over the other guys because he was a draft pick. However, the FO also seems to really like Price, so I think he has a really good shot. Brown I think is definitely a PS player this year.