If there is any possible way to get them both then do it. That's assuming both pass some sort of stringent physical risk assessment test. Not sure what that would be and would likely be different for both players in regards to testing, but I'd like to know what is the liklihood of either playing out their contract, how many likely games would they miss; just get a good feel for their injuries to make educated guesses as to how they may do physically.
There is likely a way to get both but may involve restructing some current contracts and would certainly put us deeper into the cap well.
The pros would be you'd have an instant pass rush and would be able to lighten your load for needs at LB as well as probably develop a secondary rather than buy it. You'd have even more flexibility to run either 4-3 or 3-4. You'd make the linebacking corps much stronger with the addition of one fine player. You'd create match up problems causing teams to limit their offense a little more and thus become more predictable at the same time you are becoming stronger.
The cons are you are going to get cap strapped and have to juggle the next year or so, you would be stuck with dead cap if they can't play which is a possibility, and you aren't likely to get proven vets anywhere else at other positions this year.
Not sure it's possible given both players desire for large contracts and what are current cap situation is or can be to fit these guys in here.
Abraham doesn't worry me in regards to character but his injury problems always have.
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