Mrazek will most likely give you better than that, but there seems to be narrative that Mrazek is better than the .905 goalie he has been in the regular season over the last 5 years (he's really not) or the .901 goalie he has been in the playoffs over the last few years (which of course is not good at all). I know about Freddie Andersen's warts (especially the penchant for untimely bad goals in the playoffs), but until last season, he was consistently putting up better Sv% numbers than Mrazek (even the season prior to this past one) and that is even more so in the playoffs.
Lots of people seem to be slamming the Canes for completely changing their goaltending, but then missing the part where Mrazek really wasn't that good in the playoffs and had a Meh season in year 2. Then those folks slamming the Canes goaltending moves double down on letting Nedelkjovic go, a goalie who was not very good for quite a while, suddenly had one good short season run, effectively blew game 1 in Round 2 of the playoffs with an inexcusable 3rd period goal and came back at the Canes asking for $3.5 million per like he was some sort of sure thing 1B split goalie.
The Canes elected to move on from Mrazek and the complete unknown that was Ned (and Reimer as a backup) and brought in 2 vets for the same money. One of those vets had a bad but injury plagued season (Andersen) and the other of course is just injury prone (Raanta). I have no idea how that will work out, but just about every goalie the Canes bring in does better than they did the seasons before they got here (save for Scott Darling, which was just a disaster from the get go).
My points are simply:
Petr Mrazek is an average NHL goalie who by no means is a certainty to be any better than Freddie Andersen in any given season.
Freddie Andersen had a bad season last year, but the reality is that season was an outlier to his career numbers (yeah he could be done, but that isn't a certainty).
The Nedeljkovic decision cannot really be fairly evaluated until he plays this season. Lots of folks seem absolutely certain that the Canes just let a great goalie go for nothing. Well they waived him multiple times and no one claimed him, and for the CANES to pay him $3+ million for 23 regular season games with great numbers played against just 7 other teams, not knowing if he is really that great goalie or the guy who looked average for his entire career up to that point, was something they didn't feel was the right move. (Detroit can take that chance and pay that money, they are not a Cup contender at the moment).
The Leafs HAD to move on from Freddie Andersen (no doubt)
It seems that some on the Leafs board are convinced that every move the Canes make is a bad one. At some point, yes, you have to think some of these really bold/against the grain moves will bite us in the ass. But the Canes have 3 straight trips to the playoffs and 4 series wins. They have jettisoned players like Jeff Skinner and Justin Faulk right before those players were way overpaid elsewhere. They elected not to pay Dougie big bucks well into his 30s (I suspect 'playoff Dougie' was a big factor in that decision). They elected to change their goalie mix.
No one knows how this all shakes out in the end. We will see. But what I do know is that until this group in the Canes front office finally has a season where they 'got it all wrong', its a bit over the top to call any Canes offseason a bad one. And I'm pretty confident that the Leafs goaltending situation going into this season is not really a sure fire .910-.915 because Mrazek is in and Freddie is out.