Which prospects and which 38 year old player?
Mailloux for Crosby -- you say no?
Mailloux, Mešar, Dach for Crosby -- you say no?
Mailloux, Mešar, Dach, Struble, and a 1st round pick for Crosby -- you say no?
Everything is a matter of degrees, obviously you'd take Crosby for free so what price is the price point that we can afford to give up in exchange for him?
Another comment: I don't subscribe to "mentorship" talk but Demidov is a hockey freak and super professional, it would be very very cool to have a legendary player in the lockerroom when he first joins. We don't have such a veteran presence at the moment. I imagine it would also benefit Slafkovsky, Beck, etc.
Acquiring Crosby would also send a huge message to players on our roster and across the NHL that we're a serious, ambitious, big-boy team. The question again becomes: how much is that worth?