Across the NHL as a whole, I think this sort of accusation gets thrown around a little too casually. But i legitimately think Deboer ruined Larsson and Gelinas as prospects.
This season is a real sign to me that’s he’s grown as a coach, because he had the same issues the last couple years in Dallas. He was overly reliant on Suter, he didn’t trust Harley, and he definitely didn’t trust Nils Lundqvist. But this season he’s let Harley run loose, he dropped Suter down to where he’s more effective, and Lundqvist is still playing every night (i think?) despite some glaring defensive mistakes. The Tanev acquisition was brilliant too, that’s a Deboer player if there’s ever been one.