See, here's where I'm lost. None of that describes policy, which is what I had assumed you were looking for. Those are just personality traits. I mean, back when he first got elected leader, that's how most people described Jagmeet Singh. He basically won on liability, mostly thanks to that one viral video, and it turned out he wasn't a particularly good leader at all.
And I'm not sure how any new leader is supposed to bring a "track record a few decades long". That just feels like a catch-22. Especially if you're looking for new blood to shake up a party that's been suffering from serious political stagnation for the past decade (or more). How are we supposed to bring in bold new leadership if we can only consider well established options?