I don't know if anyone has talked about this, but there's a chunk of the Sens that are REALLY good friends. Like they literally hang out all the time:
Turris (signed 5 more seasons) *what a steal
Weircioch (signed 3 more seasons, RFA afterwards)
Cowen (???- RFA at least 5 more years)
Condra (signed 2 more seasons)
Smith (signed 4 more seasons)
Greening (rumored to be signing a 5 year extension)
As much as people talk about Karlsson, Spezza, Anderson, Lehner, Zibanejad etc, these guys are the heart and soul of the team. They stick up for each other, and feed off of each other, and Murray is rewarding them all for it.