Here's what Jason Kenney said about Trudeau just a few weeks ago: "Not in touch"...."a guy who has zero executive experience, zero governing experience and zero record of putting forward substantive ideas"..."I don’t remember him saying a single serious thing about growth and job creation."
I don't disagree that they try to define people before the person has a chance to define himself...I just think that they've already started telegraphing how they're doing it with Trudeau, and I can't imagine they'd pursue the route you're suggesting based on that.
The only alternative route I can see them taking is a page from the Karl Rove playbook, and attacking Trudeau's perceived strengths. Even then, though, it still goes back to him being too inexperienced and lightweight (see: how the GOP tried to define Obama).