A rebuilding team that isn't expected to be competitive for a few seasons shouldn't be signing "nice, not great" players to extensions
Those kinds of players should be traded for picks that could potentially produce a great player
None of the four guys you've proposed from Ottawa are above the age of 25. They're all (Brown is close) legitimate NHL players, albeit "complimentary" as you say.
You do realize that Ottawa still have to actually ice a team, right?
They have 3 first round picks, two of which could be top five, 9 in the first three rounds and a total of 22 picks over 14 rounds in the next two drafts.
Why would a team who is already into their rebuild go and trade away 4 young, good NHL players who will still be in their primes in 3 to 4 years from now for another 1st round pick this year, a cap dump, and a prospect who has 34 points in 114 NHL games?
We still haven't mentioned that Ottawa has the fifth lowest payroll in the entire league, meaning the other half of your thinking is so that a team that is already well below the cap with sparce NHL talent currently on their roster wants to trade these four good young cost controlled players to free up ANOTHER 10 million in cap space that they don't even need.
I'm not sure you thought this proposal, and your follow up posts defending it through. At all.