While Hutton and Ullmark should see the bulk of the NHL action this season, they'll be supported by some experienced players in the minors.
The Sabres signed Scott Wedgewood to a one-year, two-way deal to be the Rochester Americans starting goaltender.
"Trying to find a competitive environment, you have to have a strong No. 3 within the organization," Botterill said on the day of the signing. "You look at Scott's background, what he's accomplished in the American Hockey League, and then especially this past season, getting more NHL experience, we felt it was great to have a goalie with NHL experience to come into that role. But also, too, with his age, we feel that there's growth there.
"A couple years ago, he had some injury issues. He's now healthy and I think as Carter Hutton demonstrates, goalies are always developing and sometimes it takes a little bit longer for them. We certainly see more potential in Scott moving forward."
Wedgewood, 26, has posted a .908 save percentage and a 2.38 goals-against average in 116 career NHL games. Last year, he appeared in a career-high 20 NHL games with the Coyotes.
He will be joined by Adam Wilcox in Rochester. Wilcox was Ullmark's backup last year with the Amerks and signed a one-year AHL contract this summer.
Jonas Johansson, Buffalo's third-round pick in 2014, and Hayden Stewart are expected to man the net for the Cincinnati Cyclones of the ECHL. Stewart is on an ECHL contract.
The Sabres also have Ukko-Pekka Lukkonen (2017, second round) in the pipeline. He will move over from Finland to play for the OHL's Sudbury Wolves this season. He signed a three-year, entry-level contract in June.