Based on what I've seen, I think the 5 is where he'll play the bulk of his minutes. Especially given the kind of offseason Catchings is having as a stretch 4.
I honestly don't see Keba getting minutes over Bosko if Bosko is playing the 5. Keba's an undersized rim-runner at the 5. He's a freak athlete with plus length (we've all seen Keba's highlight dunks), but Bosko is much more skilled, more polished, more versatile than Keba. This isn't a slight on Keba, but Bosko has often looked like a pro in practice. He does a LOT of things very well.
I could be completely wrong, but based on how practices have been going, I think there's a very real chance that our starting 5 will be:
1: Hall
2: Knell
3: Demin
4: Catchings
5: Boskovic
With Saunders, Baker, Mag (the defensive stopper), and Fouss coming off the bench.
This is a new song for me, because I thought Richie was a shoe-in starter over knell, and I didn't think there was a chance that Catchings would be starting over Mag in game 1, but I think both are very real possibilities, now.