I think you make a good point with this. Ill use Kennard for example. Kennard in my opinion was the best "basketball player" in the 2015 class. Has size, athleticism, decision-making, and can absolutely torch the nets. But I don't think he has the most upside or potential. I guess it depends on what you would rather have. Upside and potential don't really do a lot for you unless you are the NBA coach that has them around year 4-5 in the league.
Coach K goes out and gets "basketball players". Their skills are refined right now. They make "basketball plays" during games. They understand ball movement, flow, help-side, hard-hedging on a ball screen (which I love how Coach K teaches this), etc etc.
Until recently, Cal has always recruited high caliber "athletes" that can occasionally make shots. I think he has shifted his thinking a bit as it pertains to the college game and is trying to get a more refined player (as evidenced by last year's class). Last years class was the ultimate in my opinion. You had a bunch of great "basketball players". Coach K has always gone after great shooters who can occasionally make athletic plays while Cal has always coveted the great athlete that can occasionally make shots. Again, I think Cal has adapted and not a moment too soon.
For the record, I expect a lot out of this year's team. Not because we have lots of "athletes" but because we have some guys that are "basketball players". Tyler Ulis is refined and very skilled and I feel like Murray and Briscoe are as well. Skal is obviously very skilled. I think Matthews is a bit raw. Im looking forward to seeing what he can do. I just hope he can adapt his in-game adjustments the same way he has adapted his recruiting. Thats the measure of a great coach, changing with the times.