That's not what he said. He said they are ALL on the roster now. Okposo is an example. He seems like a good dude but there is no reason for him to be on an NHL roster any more. Yet here he is talking about his adventures with the new coach. Maybe the new coach can Tony Robbins Okposo into being 25 again. Is that the theory?
The Sabres either have poorly set organizational goals, or a roster unequipped to achieve goals. Or both. A lot of teams make the playoffs in the NHL. It isn't a big ask at all.
The odds of a random team missing the NHL playoffs 8 straight years are roughly three tenths of one percent. Once that lofty goal has been achieved, there is no reason whatsoever for a team to have a hopeless roster that relies on guys who can't do a chin up for their turnaround.