As someone who admittedly doesn't follow College ball, I base my perception of it on what others say. So here the 3 things forming my perception of this draft right now:
#1 - From what I've read, Jaylen wouldn't go in the top 10 of this draft. I think that says more about how this draft is perceived by draftniks (multiple Tier 1 and 2 prospects) than it does about how Jaylen is currently perceived (a Tier 3/4 prospect).
#2 - From what I've read, most of the top prospects are elite guards with star potential. One mock I see right now has the top 3 picks all as PGs (Ball, Smith, Fultz). Malik Monk is another sharp-shooting guard expected to go in the top 10. Other PGs seem to be in the mix in the top 10 like Fox and Ntilikina. The rest of the top prospects seem to be Small Forwards (josh Jackson, Tatum, Isaac, Anunonby).
#3 - From what I understand, there is no actual consensus top pick right now. Everyone seems super excited about Fultz, but he doesn't seem to be the consensus #1. I saw Ball at the top of a couple mocks recently. So while there's some elite talent up top, there doesn't seem to be a player distancing himself from the rest.
So... I can't really see the logic in a team trading two star prospects (one of which is more than likely a PG) for 1 star prospect (who is more than likely a PG). Makes no sense.
Philly is set up scary good heading forward. They have plenty of bigs. Their biggest need is guard play and they should come out of this draft with at least 1 guard with legitimate star potential. I expect the Lakers to desperately start tanking to try to get themselves in the bottom 3. I dont' think they want to miss out on this draft if it's as amazing as people are starting to claim.