I'm more inclined to trade the pick. Whether it is to obtain a veteran, rid ourselves of Landry, or trade down for two picks.
Playing the odds, I don't see us in the top 3, so we will be picking 7. Embiid, Wiggins, Parker, Exum, Randle, and Vonleh will likely all be gone. If they are, I'm open to trading the pick. I like the idea of dumping Landry with the 7th pick and picking up two mid-first round picks. Phoenix or Chicago could be possible trading partners.
7th pick
Landry
for
14th pick
18th pick (or if they don't want to give up the 18th, we can try the 27th and 50th pick)
Then you go ahead and draft a tandem of Payton and Harris/Stauskas/Anderson/Young/Saric/Hood/Robinson III/Capela depending on who falls to you. Renegotiate Gay's contract, resign Thomas to $5 mil a year, offer Davis or Hill the MLE, sing a C to the vet minimum, and you're on your way to building a competitive team.
PG - McCallum(Payton)/Thomas/Payton(McCallum)
SG - McLemore/Robinson III/Terry
SF - Gay/Williams/Outlaw
PF - Davis/Evans/Acy
C - Cousins/Thompson/(Aldrich or Gray)
With McCallum/Payton and Davis in the starting lineup, the defense should be better. Now we just need to hope McLemore progresses on the defensive side and we should be looking solid defensively on the perimeter.