I think Exum makes a lot of sense for them - with Steve Nash's health being a question mark. Kendall Marshall has shown flashes, but I don't believe he's the longterm solution at PG. Whether or not Exum can really be a full-time PG is it's own question mark, but I can definitely see a potential backcourt of Bryant/Exum coexisting. Still, I think if they do land a Top 3 pick Embiid has to be high on their list, and then there's Parker who is an NBA ready scorer and could produce for them right away. I think it'll come down to what the do in free agency. If they can steal Carmelo away from NY, then Parker and Wiggins likely move down on their list.
This draft is definitely going to be interesting.