Not all of them have the same product sense of a good product manager[1]. However, as far as I can tell, the lines do get pretty blurry the more senior you become as a designer. You shift from tactical work to strategic work which can have a huge influence on the product.
[1] Conversely, a lot of product managers do not have the same UX sense of a good designer. My favorite PMs are ones that have a solid UX background.
Yeah, true. Lucky for everyone both UX skills and product skills can be taught. Otherwise we'd have no hope and a sea of disjointed unusable products.
Product management and UX get pretty blurry (positively) when product management wants to generate value to customers by listening to them/distilling what users want into a good strategy that meshes with the business.
Project and program management are detached from the skill set of both product manager and UX experts. One can have the skills, but it is not because they know product or UX.
They said product management, IMHO an important distinction. Project management is managing the work, product management is shaping the product - again, IMHO.
But I believe a UX designer would make a great co-founder if they focus on user research, information architecture, and interaction design.