Glad you brought up that point Jack. I think McNair is too cheap to pony up to those that deserve it and Kubiak (in the mode of Shanahan) will say that he can get it done without any big components because of his superior scheme.
To me, talent beats scheme any day of the week. The fact that the worst passing D in the league from last year didn't pony up for Nnamdi tells you something.
I think they will pay Shaub, lose Mario, re-sign Rackers cheap, re-sign Dreesen cheap and lose Foster. Out of all of those, I think the one that will end up stinging the most is Mario. Even though the D has done ok without him and he hadn't completely adjusted to the 3-4, something tells me that if he plays somewhere else, he will be even more of a beast.