Goalies are voodoo and they are the masters of randomness. Backup goalies sit squarely in the black hole of hockey knowledge.
For some masochistic reason, I will peer into the mist as best I know how in an attempt to better understand how Kyle Dubas and the Leafs ended up with Jack Campbell. There are others who understand more because they are either much smarter than me (a cast of thousands), are privy to private tracking data such as SportsLoqiq or Clear Sight Analytics, or have mastered the mysterious art of Goalieness.