No.
We had a technocrat masquerading as a populist with Trudeau. Having another technocrat doesn't help with the problem: that most people don't see the Liberals as doing anything for regular people. This is like the Ontario Liberals picking Crombie because they think they need someone more "centrist" and "establishment" to win OPC voters, when the problem is that Doug Ford does a better job of articulating regular people's concerns.
Not that Poillevre isn't worse: He's as much as establishment weasel, only with a shot of fascism to help mask the taste.
If the Liberals want to succeed, they need to prove--before the election--that they're willing to forsake the rich to help everyone else. Right now, they're pulling the usual Liberal bullshit of "we'll do all sorts of progressive stuff, for realz, honest, if you just elect us again!".
Maybe ramp that capital gains tax up on the ultra wealthy? That'd be a good start.