Dell and Coreau are having better seasons than Berube. Of the Three I would pick Coreau to have the best chance to usurp his teams starting goalie.
If you're looking to acquire a goalie of the future for your team I would consider trading for one of the best goalie prospects now and wait it out. Juuse Saros seems to be the guy that has been mentioned in the last little while as having the best chance to take over as the starter for his team.
Two others to consider are the Ilya's from the KHL - Ilya Sorokin - NYI and Ilya Samsonov - WSH. It might take them some time to come over but they are good goalies and the only thing stopping them is opportunity. Samsonov will most-likely take longer to make an impact with Holtby in his way at the moment.
Another guy to consider would be Antti Raanta. He is older but he is on track to take over as the starting goalie for his team as Lundqvist is aging and in decline. Raanta is also a candidate to be taken as one of the goalies for the Vegas Knights. If you acquired him before his value rises, you could then trade him to a competing team for a quality, young goalie prospect.
- - - Updated - - -
Dell and Coreau are having better seasons than Berube. Of the Three I would pick Coreau to have the best chance to usurp his teams starting goalie.
If you're looking to acquire a goalie of the future for your team I would consider trading for one of the best goalie prospects now and wait it out. Juuse Saros seems to be the guy that has been mentioned in the last little while as having the best chance to take over as the starter for his team.
Two others to consider are the Ilya's from the KHL - Ilya Sorokin - NYI and Ilya Samsonov - WSH. It might take them some time to come over but they are good goalies and the only thing stopping them is opportunity. Samsonov will most-likely take longer to make an impact with Holtby in his way at the moment.
Another guy to consider would be Antti Raanta. He is older but he is on track to take over as the starting goalie for his team as Lundqvist is aging and in decline. Raanta is also a candidate to be taken as one of the goalies for the Vegas Knights. If you acquired him before his value rises, you could then trade him to a competing team for a quality, young goalie prospect.