The more I poke into it, the more it seems like Schwindt is in a similar calibre/expectation of graduation a Zary and Ruzicka with non-identical, but many of the positive tools that those two have. If It's too much to have more than Pelletiers and Phillips graduate, I can see there being a temporary logjam for space to graduate players. Rooney and Lewis would be good guides for these guys in the bottom 6, but we would need less vets (once the contract expire) to let the kids onto the roster.
Graduation wise for the forward prospects in order it looks like: Pelletier (LW), Phillips (RW), Ruzicka/Schwindt (C), Pospisil (LW/C?), Zary (C), Coronato (RW)
We are likely going to have issues if we cannot increase graduation from 2 per season to 3-4 for a season or two.