With the roster we have and picking at #10, I think by far and away the biggest concern is getting the guy who we think is the best player. No positional or fit concerns for me at all. I could see a world where you believe Sexton is good enough to start changing your decision making, but I don't think we live in a world where the FO feels that way.
Now, you could say Dilly/Topic is a worse player/prospect because of his fit with any team in the NBA. I wouldn't necessarily disagree with that. I've soured on Dilly/Topic a bit, I'm not sure they are a better pick than the theoretical long wings (Holland/Williams/Salaun), the older guys (Carter/Knecht), or even some of the other wildcard picks like Collier/Walter. Out of this group, I think Dilly/Topic probably have the highest chance of getting a "hit". I wouldn't mind taking them, but I don't feels strongly over the rest of the pack.