I think one thing to keep in mind when trying to compare players and their salaries is that significant portions of all these high contract numbers may as well not even exist.
Larry Fitz is currently 30 years old, soon to be 31. His cap figure jumps $15M next year to $23M. The Cardinals already have a high cap figure and would free up $9M by cutting him. If they cut him, he doesn't see almost $50M of that $113M contract. Basically what he really got was a 4 year, $64M deal.
Same thing with Calvin. 7 years, $113M. At 28 and turning 29 in September he'll be 30 going on 31 in 2016 and he'll have a $24M cap charge versus $12M to cut. If he's cut he doesn't see $57M of that $113M. Basically a 4 year, $56M deal.
Both are still large contracts and have high averages, but what a player has signed for and what they are likely to make are often two different amounts.
Over 30 years old and on the free agent market isn't a recipe for a huge payday. These two (and perhaps Dez) may be good enough to play well into their 30s provided the good fortune of health, but if the last three years of their contracts have nearly unjustifiable cap charges, they'll have to rely on free agency to make up their lost dollars if their teams have to cut them.
Nobody is going to sign a would-be 32-year-old Larry to the 3 year, $50M contract it would take for him to realize the total amount of his current deal. And nobody is going to sign a would-be 31 y/o Calvin to the 3 year, $57M contract it would take for him to hit his current total.
If those guys are cut, they'll get less simply because of age.
The point I'm trying to make is Dez (and all big time players who aren't QBs) would be smart to shoot for a lower overall total in order to increases his likelihood of playing out the entire contract.
You could give him a contract that averages a good bit less over the total length but will ultimately pay him more because he doesn't price himself off the team at 30 years old.
If you gave him a 7 year, $86M contract he could make $56M in the first 4 years and be right on par with Calvin, and then make $30M for the last 3. He would average $12.2M per season but unless Calvin could pull more than $10M/year as a 31 year old free agent, he would ultimately make just as much and possibly more before it's all said and done.
Because Dallas can utilize the current year and cap space they have they could basically look at the contract as a 8 years, $87M because his current base salary is $1M. Add $5M to his cap number this year to take some of the future cap numbers down.
Give him $15M in SB that spreads across this year and the first 4 years of the new portion.
2014: Base: $3M + $4M Prorated ($1M from current contract) = $7M Cap Figure
2015: Base: 9.75M + $3M Prorated = $12.75M Cap Figure
2016: Base: 9.75M + $3M Prorated = $12.75M Cap Figure
2017: Base: 9.75M + $3M Prorated = $12.75M Cap Figure
2018: Base: 9.75M + $3M Prorated = $12.75M Cap Figure
$41M in new base salaries and $15M in signing bonus. He is paid just as well as Calvin thus far, but he doesn't have to hope that the free agent market will come through.
Year 5 has no prorated money and you have to have an assurance for him remaining on the roster. $15M option bonus that will be prorated when the time comes. Base salaries at $5M from there on out.
2019: $5M Base, $5M option proration, Cap Figure = $10M
2020: $5M Base, $5M option proration, Cap Figure = $10M
2021: $5M Base, $5M option proration, Cap Figure = $10M
The large proration endures he plays at least years 5 and 6 because there's no benefit in cutting him. If they cut him year 5 he's in the exact same boat as Calvin but his contract didn't have the extra $27M in unobtainable money that amounts to nothing more than "street cred".
Dez averages $12.2M over the new years that are added but Dallas gets to take advantage of the current situation and effectively make it a $10.75M average for this year plus the additional 7 years.
Will those other guys be cut? I dunno but they have positioned themselves to be cut by having cap values that are nearly impossible to justify.
Bottom line. Averages are pretty meaningless. If Calvin is cut he'll have actually averaged a full $2M less than his contract was written for.