I know he has the least experience, but I feel like Zach Smith is underpaid given performance as a position coach, vastly improving the receivers since he started, as well as his performance on the recruiting trail.
Here is the scale: http://www.cbafaq.com/scale2011.htm
Totals about $19.18M over 4 years.
EDIT: Actually they can (and most likely will) sign up to 120% of that scale, so $23M over 4 years.
Finally stopped lurking. Now officially a member of the 11W BlackStripes.