I think there's some nuance there.
I think you don't trust any one Goaltender unless their name is Price. I don't think going with an option like Skinner is bad per say - my main problem is that we more or less anointed him the started without him earning it and haven't pushed him.
To me - I think the ultimate is a 1A/1B tandem of budget/value goaltenders. There's several things there;
1) goaltenders are the most important piece of your team. While they won't win you shit, they will sewer you if they're bad.
2) goaltenders themselves are unreliable - so you can't rely on any one as any given one might fall off a cliff, or get injured. Having two equal goaltenders insulates you from this risk.
3) there is some solid historical evidence that Goaltenders preform the best with less work - to quote Brian Burke - you'll never win in the playoffs if you're Goaltender is starting more than 55 games. They need time to cool off and work on their fundamentals. Having two equal goaltenders keeps both fresh.
4) some combination of "goaltenders are voodoo / separation in goaltenders in today's game is much lower than it used to be" - if you scout well it's easy to find guys that over preform their contracts. This creates a cap advantage.
5) this fosters roster competition in a position that's typically impossible to foster roster competition in.
A large part of my problem with Skinner is that he was basically given the reigns with no backup plan, and then given no rest. Sink or swim. And then he sank - and we had no other options, and we just kept going back to him with no other options.
Pickard became an option, but that was a fluke and him stepping up, not by design. If it was up to it management or our Goaltending staff they'd never let him start playoffs games or earn the net over Skinner regardless, they've said as much.
This is all fair and I generally agree. Exceptions as below from the goalie perspective.
1) They can absolutely win you games, on their own some nights... it's just difficult to find guys that can do that night in night out (because it's frankly exhausting).
3) Yes, cool off is right... people say it is a mental position. And that's true... if favors perfectionists who are by nature very hard on themselves. But that also makes it a very emotional position. Some guys (like Campbell) take that all inside and self-blame, others (rare like Fuhr) truly just let it wash over them and focus on doing what they can do, and others (like M Smith, P Roy) are Alphas who demand the same level of perfection from their teammates. Over time, if a team is over relying on a strong goaltender as a crutch, that goalie is going to get drained emotionally... lose confidence... or worse, resent certain teammates for repeated errors that no-one calls them on. When your top D-man makes an error, you do you best to bail them out... when the same guy makes the same dumb errors all the time, it's hard to focus when your coaching-brain is screaming WTF!
5) I'm a big believer in goalie tandems, not necessarily for competition reasons, but more for support... when you've got an Ullmark/Swayman situation you've got a built in relief valve for the pressure... not just physically spacing out games, but having another guy who can silently understand why you'd be pissed at a certain goal against or situation... and/or can help point out minor slips in your game that you haven't spotted yet.
6) Pressure... to all of the above, that's why tandems work. One thing people know but also fail to appreciate is just how perfect a goalie has to be to be solid. Obviously that's the job. but what is unappreciated is that when a player is having an off game, hits the post, muffs a shot... they have two outlets: i) they come off to the bench and vent with friends, and ii) they can go out the next shift and HIT someone, or breakup a play. For the goalie, all they can do is stop the next puck... there's no other outlet... and that next shot might be unstoppable and out of their control... it's a game of precision, like golf, but nobody moves the ball in your backswing. A perfectly executed breakaway = goal and a perfectly played breakaway =/= save... that imbalance can be the cause of frustration.
7) Self-awareness, responsibility: the best teams talk objectively about all mistakes, take ownership, and chat through what was going through their mind on a given play... do that and your goalie (who may or may not be the talking type) will open up too... to point 6 that becomes a safe and productive outlet. Team will be the better for it.