They can sign Leary to a market deal if they want and the opportunity cost is being able to bring in guys for defense. Being able to do what they want doesnt mean they can sign every FA your heart desires.
They can open up $19m. $5m of it will go to the draft picks. McClain, Irving, and the secondary guys are going to take a good amount too. We still need a WR and a DE as well.
those last two are your opportunity cost and given we have Collins on the roster making $550k, it just does not make sense to pay $8+m AAV on top of the $12m Tyron gets, $10m TFred gets, the $5m Free gets and the $12m Martin will demand soon.
It is true that there is an opportunity cost to resigning Leary. That is the nature of the cap. EVERY contract on every player has some degree of cap implications.
Having said that It is true that signing Leary will have some opportunity cost going forward. They probably won't resign him. But is is a legitimate debate whether that is a good decision, or not.
Keeping Witten, Dez, Crawford and Romo (and I'm a huge Romo fan) also has an opportunity cost. Those 4 contracts are a HUGE chunk of our cap and it should be evaluated constantly whether they are worth their cap hit.
Each one of those contracts is equally an impediment to us signing free agent defenders as is resigning Leary. A cap dollar spent on every player carries the same weight. That's why is is critical to have good contracts.
It is not realistic for every contract to turn out to be a long term good decision by the organization because a team can't see the future. But it is important to cut bait if the cap hit, etc., will allow you to move on from that player.
Everyone wants to cut Romo and from a cap savings standpoint it would save cap dollars eventually. On the other hand he can still play at a very high level. The issue is can he stay healthy.
Witten is still valuable to our team too, but he is not worth his salary. We need to leverage these situations into pay cuts and use that money to improve the defense. There is more than one way to skin this cat.