They also had an abundance of players they could A) sell off and B) keep one or two.
Look at the list. Chicago and Boston were also well established with a successful vet core.
We only have one or 2 guys (JVR/Gardiner) worth anything. Bozak/Carrick/Komarov/etc aren't fetching you anything. We have about 2 guys and a lack of center depth in the organization. We need more D around the age of Dermott developing. No vet core. Limited success. Year 3 basically of the Matthews draft. We aren't in a position to lose what limited assets we have for free.
Their sell offs were not comparable to what people are advocating for. The closest (like I said) was a 77 point Havlat (worth more than JVR) that was kept and left to walk during a 104 point season one year after missing the playoffs, two years after drafting 1st
Byfuglein- offseason, post cup, 1 year from RFA, 25yo
Ladd-off season, post cup, pending rfa, 25yo
Versteeg-off season, post cup, 2 years from RFA, 24 yo
Saad- offseason, post cup, pending RFA, 23 yo
Brouwer- off season, post cup, pending RFA, 25 yo
Sharp- offseason, post cup, 2 years from UFA
Campbell- off season, post cup, 5 years from UFA
They salvaged value from cap casualties and had a pipeline in place to replace their secondary players, during the off-season. They didn't weaken their team at the TDL, and didn't weaken it more than they had to for cap compliance in the off-season.
The Blackhawk lesson is not "don't lose assets for nothing", it's "don't tie up money in 3rd contracts to replaceable non-core wingers.