What's interesting is that in the off-season, he fired his agent, Paul Theofanous. Theofanous is notable for representing high-profile Russian players--currently including Panarin, Bobrovsky, Kaprizov, and Varlamov. Theofanous is also tight with Sather, which you can imagine for someone unhappy with the organization, might not be ideal.
And then he switched to Dan Milstein, who represents, I don't know, half of the Russian players in the NHL? Kucherov, Vasilevskiy, Zaitsev, Sorokin, Zadorov, Barbashev, Sharangovich, etc. Milstein was the agent who came out and condemned the "harassment" his Russian players were receiving, recently.
Anyway, I would guess he switched agents specifically because he had an eye on bolting if he didn't make the team and wanted someone who would support the decision--and Milstein was probably on board whereas maybe Theofanous wasn't. Who knows.