Quoting: BUF10
Greenway is going to be in the top 6.
Quoting: BUF10
They didn’t trade a 2nd for him to be a bottom 6 player or healthy scratch.
We'll see. Greenway may see time on any of the 4 lines during the season - it's pretty clear in everything Granato has said that he intends to give ample opportunities in different situations / combinations to try and "unlock" that potential he thinks Greenway has. Considering the up and down performances Greenway gave, it seems likely that he may be inconsistent and force Granato to shift him up and down the lines and ice time allotments.
In the same vein, they didn't push hard to insist on Krebs as the key piece of the Eichel trade just to keep him perpetually on the 4th line. Last season's time there was clearly with the intent of developing Krebs' defensive awareness and consistency of effort - but his potential as an offensive catalyst is only going to be reached with at least consistent time in the top 9, likely centering the 3rd line rather than Jost.
We'll see whether or not Olofsson sticks around beyond training camp - he may likely be the insurance policy / fallback option and stay only if all of the prospects (Kulich, Savoie, Rousek or another Amerk) show they're not ready for full-time duty in Quinn's spot. Odds are that at least one of them have a strong camp and make a case for deserving an NHL spot, which would then make Olofsson expendable.
Although the pairings could vary in any combination (including 2 LHD or 2 RHD as partners), I think the top 6 defensemen you have listed in the top 3 pairings are the ones they'll go with. I expect they'll keep 8 defensemen with Stillman and Lyubushkin as the extras.
Bryson is clearly a spare part - whether he has any trade value whatsoever or would be claimed on waivers if demoted is anyone's guess. I don't think it's an automatic that, if he clears waivers, the Sabres would want him to take a roster spot in Rochester at the expense of either Johnson or Novikov not getting top 4 ice time. His cap hit is small enough that a buyout isn't much worse other than its multi-year impact than the buried amount they'd pay.