I agree with kevinsrangers, I still think Harding is as/more valueable than those other 3.
I read a few comments from Jordan Sigalet. He was a Boston prospect who was also diagnosed with MS. He specifically mentioned the fact that it wasn't MS that ended his playing career, he decided on his own that it was time to move on. He was diagnosed in late 2003 I believe, his 2nd season with Bowling Green. He played another with Bowling Green, and 3 with Providence. He never played a ton of games (37, 25, 19 with Providence), but that's also a few years after he was diagnosed.
Was anyone expecting Harding to start more than 30/82 games any way? 3 or 4 years after being diagnosed, Sigalet played 37 and 25 games. To me, it's entirely possible Harding starts about 30 games... but I do realize that not every person is the same, so there's obviously some inherent risk in keeping Harding.
16 team roti keeper (yr 5/5, keep 6)
G, A, +/-, PIM, PPG, PPA, SHG, SHA, GWG
W, GAA, SV%, SO
2c, 2lw, 2rw, 4d, 2g, 8bn
C: Stamkos, Backstrom
LW: Sedin, Landeskog, Ott (C), McGinn
RW: Purcell, Brunner, Stewart, Boyes (C), Hornqvist
D: Letang, Byfuglien, Streit, Carlson, Beauchemin, Barrie
G: Ward, Schneider, Ellis