2016-17 was built almost in its entirety by the same people who are here now (the same people you regularly insist must be fired immediately), four years after the worst season in franchise history, and didn't last because some of the most important core players - most notably, nearly all the guys we traded for, plus one known problem case - wanted out. Which suggests that if they did it before, they can do it again - and they're doing it with drafted and developed guys this time.
2016-2017 minus four years = 2012-2013 -> the year in which the team missed out on the playoffs on the last day via tiebreaker?
Anyway...
Cam Atkinson - Howson draftee
Nick Foligno - Howson trade acquisition
Brandon Dubinsky - Howson trade acquisition
Boone Jenner - Howson draftee
Josh Anderson - Howson draftee
David Savard - Howson draftee
Jack Johnson - Howson trade acquisition
Matt Calvert - Howson draftee
Lukas Sedlak - Howson draftee
Ryan Murray - Howson draftee
Dalton Prout - Howson draftee
Sergei Bobrovsky - Howson trade acquisition
Joonas Korpisalo - Howson draftee
Curtis McElhinney - Howson trade acquisition
Jarmo/JD drafted Wennberg, Bjorkstrand, Werenski, Nutivaara, and Carlsson and acquired Saad, Jones, Hartnell, Gagner, and Karlsson (and Quincey at the deadline).
"built almost in its entirety" is doing quite a lot of work, imo.