Somebody should set up a POLL in here about who does and doesn't think this whole player safety/concussion thing is overrated as an issue.
Wasn't Murphy as a player a hard hitting safety, kinda known as a head hunter? That didn't stop him from getting his advance college degrees and moving on as a leader.
I wish somebody would cross-check the cases of concussions ruining post-career lives with other causes - specifically, PEDs and recreational drug use. I point to Jim McMahon as the most obvious red flag in that area. There is a really tiny percentage of McMahon/Seau/etc. situations anyway, and I suspect most of those could just as well be attributed to other things.
Two of the most concussion-plagued careers I recall were Steve Young and Troy Aikman - both reputedly clean livers - and they seem to have turned out OK.