All three have already proven themselves at the AHL Level and the only way to gain NHL Experience is by playing in the NHL.
Krebs, Quinn and Peterka all have positive defensive metrics and are even out producing Mittelstadt 5 v 5 in terms of points.
Putting them in Rochester is going to hinder their development and it will also block the development of players who are down there this season
The most important thing to remember about Jack Quinn’s Career thus far is it takes Him Time to adjust to the next level of play.
He went from 32 points in His First Year in the OHL to 89 in His Second.
He played 15 games in His First Year in Rochester and had 9 points, last season He played 45 games and had 61 points.
He has 5 points in 11 games with the Sabres thus far. When His Offense catches up with His Defense, it’s gonna be fun
If you look at His Analytics from the previous seasons He has taken a step back.
Using Evolving Hockey’s Public Model He was in the 83rd, 63rd and finally 89th Percentile for all Defenseman over the past three seasons. This is the primary reason the Sabres Analytics Department targeted Him IMO.
As Taro mentioned, His Foot Injury has probably effected His Play.