Defense is pretty hard to quantify and it's not very scientific.
Even if a UConn defender manages to shave 5 points off of an opposing player's PPG average, what's to say that another opposing player won't score 5 points more?
There's different ways to measure defense, steals, blocks, pressure & shots, rebounds, maybe the missed shot wouldn't have gone in anyway. How do you measure the effectiveness of pressure?
And then there's the differential of the offense prowess of the UConn defensive player.
Let's say a defensive specialist did manage to shave 5 points off of an opposing player's PPG, but that defensive specialist didn't score any points while there's a player on the bench that could have scored 10 points.
That means the defensive player cost the team 5 points even they performed effective defensive play.
That's why it's hard to say that one player is better or more worthy of PT than another.
Especially if a UConn player is an inconsistent scorer, or causes fouls, or plays too many minutes and loses their defensive effectiveness.
In baseball, players can have ratings for their different "tools" including both offensive & defensive skills.
All kinds of measurements of skills & statistics down to how fast they can run & the velocity of the balls that they hit.
But in BB we don't have access to many statistics that perhaps some coaches have advanced metrics of some sort.
They have done some studies with electronic devices that take measurements of how many jumps before their legs get tired & lose height, & how much sleep they get every night & what they ate for breakfast too. (Joke Joke)