I'll give you 10 guesses as to Chris Rogues junior team connection to Dubas and the first 9 don't count,
Dubas and Roque's professional relationship dates back to... surprise, surprise... Dubas' time in the OHL with the Soo Greyhounds.
Dubas, Clark, Roque and former Leafs head coach Sheldon Keefe were all BFFs and a power team for years with the Soo Greyhounds of the OHL and Dubas has done his best to keep the group together in the NHL with the Leafs.
It didn't work out in the Soo nor in Toronto, (were Dubas teams only ever won a single playoff round), but he's trying it once again in Pittsburgh.
Third time's the charm I guess?