You lost me when you said SV% is the best way to judge a goalie.
Quoting: ChiHawk
The West is not terrible, the Pacific isn't as strong as the central (Col, Dallas, St Louis), but overall, no division is "terrible" in today's league with so much parity.
Canes have one of the strongest defenses in the league. Can every team improve even in areas of strength? Of course but this is hardly a weak spot and all the stats support this. Reimer has not been horrible, very middle of the road based on SV % which is the best way to evaluate a goalie. At .917 it is indeed respectable. Mrazek on the other hand at .906 is a middle of the road backup. The point is, name a recent team that won a cup that didn't have outstanding goaltending. Maybe reimer gets hot in the playoffs and can take you there? If Lehner was available, top 6 in the league and seeing an average of 38 shots a game, he would be the difference between Carolina going the distance and not. Not saying Lehner is the guy but somebody like that of that ability. I don't think anyone would argue Lehner is a big upgrade to Reimer.
To the original point, can you take an area of strength (defense) and make it better? Of course, but I believe Carolina already has a good enough defense to win a cup. I think they can add some forward gritty type of player depth and a top 10 goaltender and be a cup favorite before adding more defense.