Vesey,Butcher,Kerfoot and Kevin Hayes all did that.
Hayes is the only 1st round pick from this group. And if you read into it, the Blackhawks were being cheap in contract negotiations. Hayes also wanted the fasted route to the NHL as a center and the Blackhawks were cup contending team at that point.
Poehling has a spot in our top 3C in the future and the Habs won't be cheap with him. He will be getting the max 3 year ELC deal with bonus structure. He also can possibly burn one year on the ELC this year if he plays one game. Depends on how far his NCAA team goes this year.
Only in Habs land is where we start this kind of talk where Poehling will leave us. Our fan base always wants something to talk about. There is zero evidence of Poehling not wanting to sign an ELC with us. Lets talk about it "if" it happens