Fleury has been noticeably physical and to his credit, has logged PK minutes effectively, but my impression has been merely solid defensive play at EV. Solid defensive play is impressive given that he's just a rookie, but I don't think he's been otherworldly or anything.
I wouldn't call Hanifin a deadly weapon on the PP, but he's been effective in that role. Since the start of last year, he's ahead of the likes of Ellis and Parayko, on par with Barrie and not far behind the likes of Green, Byfuglien and Faulk in terms of point production with the man advantage (unadjusted for differences in GP or icetime.) Not bad for a 20 year old.
http://www.nhl.com/stats/player?agg...172018&filter=gamesPlayed,gte,1&sort=ppPoints
Duchene could put the Canes over the top, but only if the cost is Bean/Fleury++. Fleury or TvR in the Top 4 and Carrick or Dahlbeck in the lineup regularly would be a significant short-term weakness for a team that would be looking to maximize their chances in the short-term, while Duchene still has cost-controlled years of term left on his contract.