Fair enough, I did misunderstand.
I would just add that there was a lot of consternation in the Kentucky fanbase about missing on Jaylen Brown and having to play a three-guard lineup, and plenty of folks wondered why Calipari indulged Briscoe as a third, smallish guard (who can't shoot) rather than giving Matthews (a long wing) more run. But Calipari's recruiting machine is built on stroking the egos of five-stars like Briscoe and I suspect that's part of the reason why Matthews sat on the bench so much. I think Matthews would have had a solid freshman year at a more normal program.
Anyway, as a RS sophomore, I think he can make just as much impact as Poole, if not more, and I think any questions about "fit" are moot.