I suppose my comment was made with the assumption that they'd be more hands-off with the project, with their main role being funding. But yeah you make a good point.
Yeah I guess my point is that a project of this size likely needs be spearheaded by a group of very wealthy people that are dedicated and willing to put the proper time and energy into seeing this through properly.
It's very true that this isn't just a team for sale - it's a team that has the potential to basically move to a new, more popular market full of your existing fans (downtown), and getting to build a new state of the art arena of your dreams. Its someone with a vison (and deep pockets) wet dream dream tbh. Overspend now, whatever it takes to get the arena built, and watch the franchise value skyrocket in 10 years from now.
Even just overseeing the overseers is still a full time job for the person stroking the cheques if they care about their money (which most rich people do).
I'm not sure what the girls financial situation is, but my assumption is that while it's possible for them to fund this project from an equity standpoint, their margins of error would be very thin. And it would still be a lot of stress for them even if there werent any major hiccups along the way.
Again these girls could likely get it done if they went all in and hired a good team of people in front of them to help see it through. But I think they are respectfully bowing out and selling at the exact right time for a new, more invested and passionate ownership group to come in and take it from here.