Do we franchise tag Nicks in this off season?

Think we'll see contracts with a large roster bonus in 2013
Or contracts such as Reggie's that escalate in 2013
Why not give Nix 5 mil with a bonus of 10 mil over 5 years
His salary is 5,10,10,15,15
Wouldn't his cap hit for 2012 be 7 mil
but he pockets 15