Too bad, easily one of the best defenseman of his generation I would go Perfect Human - Pronger - S. Niedermayer that's how good Pronger was in his prime. He took a lot of teams on his back and led them to Stanley Cup appearances and even wins, he is physical beast.
All the best to him hopefully Pronger can be symptom free very soon.
btw. how dumb is Holmer? You don't say something like that publically because you are now on the hook for 6 million against your cap, just keep him on LTIR and when his contract is done, anounce his retirement.