Its obviously a complicated issue. I think the only viable solution to the issue would be to setup longterm healthcare for players...That being said, I think these two comments from the ESPN article are worth repeating...
"OverendWatts-
Roger Goodell will fine and suspend James Harrison for this."
"mdpinholster-
I think they should sue the guy that held the gun to their head and made them play football professionally.
I am a military Veteran that also happens to work in healthcare now...there are some "on the job risks" involved with certain jobs.
It is called assumed and implied risk."