Some were depicting Seventh as an elite scorer, too, but he didn't play much with Berry and Nate ahead of him. Maybe Coby is better than we thought Seventh was, but he will still be competing against Jalek, Seventh, Kenny and Andrew for PT.Well, as you say there are lots of moving parts in that scenario. All I can offer is to (ideally) simplify things by saying Jalek should be our 30+ minute 2018-19 PG, and from that point I would hope that takes him away from the 2.
The question will be who backs him up. 7th has some experience, Coby can play there if needed, and truth be known Andrew is more of a natural at it then either. Either way, hopefully we're only talking 8-10 MPG.
I stick by my assessment that Leaky is ideally a 3, and as for Coby, he's an elite scorer so he's gonna play a lot as a freshman.
Relying on your assessment of Jalek, there won't be a lot of minutes for Coby at PG - where he will have to battle Seventh for that time. And you can be sure Kenny and Seventh will be trying to get all the minutes they can at SG. And that's assuming neither Leaky nor Brandon is gunning for those minutes.
It should be fun to watch. Especially since, by then, our bigs should know what they are doing (and we'll know what to expect from them).