After watching Drew Doughty, Shea Weber and Duncan Keith control the play on the Canadian back-end at the Olympics, it’s obvious stud defencemen are worth their weight in gold.

All three of those guys can play close to 30 minutes an NHL night, which means you are awfully safe for half the game, which is exactly how coach Craig MacTavish felt in 2005-2006 when he had Chris Pronger on the Edmonton Oilers’ blueline.

It’s exactly why the Oilers again have to make a play for Weber, one of the game’s top four defenceman — Doughty, Keith and USA/Minnesota Wild blueliner Ryan Suter are the other three.

There’s no way on God’s green earth the 2012 Cup-winning LA Kings would ever consider moving Doughty, who is only 24. He was awesome in Sochi.

And Keith is the bedrock of the two-time Stanley Cup winners in Chicago.

But the Nashville Predators are another story.

They have no top 6 forwards. They have two very good young D-men in Seth Jones and Roman Josi, who was on the Swiss team in Sochi, to go with Weber, 28. He has to be the Oilers target.

You cannot win without a stud blueliner who can play against the other team’s best players, who has enough offence to also play the powerplay.

Again, the Oilers and the Philadelphia Flyers have the best young forwards to dangle.

I know Weber’s the face of the Predators, but I also know if the future Hall of Famer Pronger can be traded, so can Weber.

I also know Oilers president of hockey ops Kevin Lowe LOVES Weber. Weber is in his prime, he’s 235 pounds, only Zdeno Chara shoots the puck as hard, and Z stands in front of the net on the Boston powerplay now.