Davis had a great game, seems to play more under control and generally makes better decisions than Love as a point guard. Love has the physical attributes to be a pro(regardless of his propensity for multiple turnovers in short stretches) and if he can string together 8/10 games of hitting a decent percentage of shots could easily be one and done(even if he's still turning it over).
I see it that Roy has to play Love because of his recruiting profile status as a potential one and done. To me, Davis is a better point guard right now. When Roy made the decision to start one over the other, there was no way Davis was going to get the nod. Love is and will be given every opportunity to lead this team to the season end.
IMO, the young players who are improving have a better understanding of where to be in this system and where their teammates are likely to be. Walton, Davis, and Kessler display these qualities. Love and Sharpe are slower to get to their level(it will come).
Carolina is not lacking in talent. If one wish could be granted, it would be Caleb Loves improving his play at point guard. Its been a difficult road. And thats probably not happening next game and based on his progression, not this year.