Just had a thought, going back to the "blocking the youth" thing.
The Flyers were in the top half of the league for youngest rosters by most pre-season counts, and those included Lehtera, MacDonald, Weise, Simmonds, and both of Neuvirth and Elliott.
I just took the roster they've rolled out in their last few games, even including Elliott as the backup (oldest player on the roster at nearly 34) and calculated it. Included Bailey and Knight on the fourth line, though Knight and Varrone are essentially the same age.
The average age of that lineup is between 25.5 and 25.6, which would make it second-youngest in the league at the start of the season (I'm assuming Ottawa's right now like, below 25 though). Half of the current 20-man lineup is under 25, eight of those guys still will be at the start of next season, and I'd assume at least one more rookie makes it, particularly at the expense of 28-year-olds Knight and Varrone.
The Flyers are a remarkably young team, one of the youngest in the league by far. Outside of a backup goalie, Giroux is the oldest guy on the Flyers at ~31.2, and only four other regulars (Raffl, Voracek, van Riemsdyk, Gudas) are within three years of him. Yes, they need to strengthen the bottom 6, but they don't really need to get any younger to do that--they just need better players. I'm not sure they have any of those in-house at the moment.