Sorry Choke, but you are just dredging up more examples of voodoo mathematics to make Husky fans think 75 points are less (a lot less apparently) than 64 and a better defensive showing, and that a team that gives another team more possessions and more shots while allowing them to shoot better is somehow a better defensive team. As noted, when Oregon had umpteen possessions and put a relatively high 68 points against UConn, it was balanced by the fact that the points were scored off 88 shots in an uptempo game when the team was held to 31%. That UConn's performance against Louisville was a lot more points (what does "a lot" mean anyway? 10? 15?) worse than ND's against UNC is simply an example of voodooism gone astray.
There are no defensive plaudits to be won from allowing a team to simply get more possessions and shoot 39%, a percentage that's not bad for ND but is certainly not one that Geno would be happy about. As to the fact that UConn is the leader in points per possessions, that's obviously not a surprise since they lead in FG% and scoring defense, and have twice as many blocks and far more steals than ND. Those are stats that mean something. The fact maybe you forced an opponent to play a more uptempo game and that they scored 78 points in 80 possessions rather than 60 points in 60 possessions does not make you a better defensive team. Teams like UConn that stifle the opponent and make them use up their clock are not worse defensive teams for doing that.
When it comes down to comparing players, performance per minute or per possession obviously make clear sense, as a player who racks up 10 ppg in 10 mpg is doing better than a player getting 12 ppg in 20 mpg, assuming the same shooting percentages for that one performance marker outside of all the other factors such as rebounding etc.
I know there are also those who worship the APBRmetrics for team defensive stats too, perhaps thinking that uptempo teams that give up 75 ppg and have a 3.0 scoring margin should be allowed to be thought of as a better defensive team than one that gives up 55 ppg and has a 2.5 scoring margin. The APBRmetrics also have a FTA element that basically gives you a better defensive efficiency rating if your opponent has a bad day at the line. Not sure that UConn played better defense if Odyssey Sims clanks 6 of 10 FTAs than if she nails them all. But APRBmetrics says they had a better defensive efficiency maybe for giving the shooters the hairy eyeball while they were trying to focus.
So here's a tale of the two APBR rated teams in different games in the same situation. There's a minute left in the game and the score is tied 70-70.
Team A's opponent brings up the ball and hits 2-pter, than Team A goes and makes a 3-pter, and then the opponent misses a shot to end the game and Team A celebrates a win. Defensively, the winning Team A faced 2 possessions and gave up 2 points on 2 FGAs. Pretty much a 1.00 defensive efficiency for their final minute.
Team B's opponent brings the ball up but turns the ball over, but immediately snatches it right back but then has the ball stolen right back before immediately grabbing the ball again and scoring a layup. Team B than gets the ball and hits a three, but the same TO sequence as before is repeated at the other end with Team B finally getting a layup at the buzzer to win the game 74-73. Defensively, the losing team B faced 6 possessions and got 4 TOs with 2 FGAs while giving up 4 points. Pretty much a snappy 0.67 defensive efficiency for their final minute.
So clearly Team B had the better defensive efficiency with the total of 6 FGA\TO credits versus 4 points given up than did Team A with the 2 FGA credits and 2 points given up. You see, Team B faced more possessions and had a better defensive efficiency, and I guess that's what really counts, not FG% or scoring defense or points per minute or whether you won the game.
So Choke, I am glad you are happy with your possession stats and that ND was a lot more defensively efficient in their UNC game. I'll stick with real numbers like the normal defensive stats while understanding that other fans think that possessions are 9/10s of what matters.
Dobbs, I now believe that you do not understand the concept of points per possession, so I'll explain it in more detail to assuage your fears that I am dabbling in voodoo basketball statistics. But I first want to point out that I never said anything about "a lot more points" nor did I ever mention Notre Dame or their game against UNC. Stamfordhusky made these arguments (and he's probably correct), but I only spoke up for points per possession (PPP), so I will clarify that argument.
Again, the advantage of points per possession (PPP) stats is that they incorporate all aspects of defensive ability: FG% against, 3FG% against, FT's, turnovers forced, and defensive rebounds. And of course offensive PPP would incorporate FG%, 3FG%, FT's, turnovers, and offensive rebounding. The 3 defensive statistics you champion either do not account for all these aspects (i.e., FG% against and points scored per FG attempt) or fail to account for pace (points allowed per game).
When a team is playing defense, they can succeed by stealing the ball or otherwise forcing a turnover. In this case, the opponent never gets a shot, so your favored metrics (points per shot and FG% defense) do not consider it a successful defensive possession (or an unsuccessful one, for that matter), but the turnover would be measured by PPP (points per possession). Imagine a situation where a pressing team forces a turnover 20% of the time, but when an opponent successfully breaks the press, they score at a slightly higher percentage (40% FG) than if the defensive team hadn't pressed (35%). In a game with 100 possessions, the pressing defensive team would force turnovers 20 times and allow shots 80 times. At 40%FG against, they would yield 32 baskets in 80 attempts (64 points). The non-pressing defense would allow 100 shots at 35%FG, which would be 70 points. In this case, the better defense is the one that allowed the higher FG% against because it was offset by all the turnovers they forced. Despite giving up 6 fewer points in the game, the pressing team allowed a higher FG% against and allowed a higher points per shot attempt (64/80 = .8 whereas 70/100 = .7).
Your trivial examples of the last minute of the game are silly because at short intervals, all stats fail, as stats are a slave to the law of large numbers. The whole basis of PPP is that over a whole game, the number of possessions for each team is approximately equal. If UConn had 120 possessions in the Oregon game, then Oregon probably had between 118-122 possessions, because whenever an offensive possession ends, an offensive possession for the other team begins (except when a team gets an offensive rebound off a missed FT and in the odd case of flagrant fouls). PPP is really a fancy way to recreate margin of victory (when you combine offensive PPP, defensive PPP, and pace).
What about FT's? Well if a team is fouled and gets FT's, then that counts as an offensive possession. If you give up 2 points at the FT line because he fouled a team, that means your defense was unsuccessful that trip. But your FG% defense stat does not account for FT's and your points per FG attempt overcounts them. But PPP counts them as the scoreboard counts them (which is why it is better).
Why is pace important to consider? Or restated, is Harry Parretta one of the best defensive minds in the game? Is Paul Westhead one of the best offensive minds in the game? You cannot just use points allowed per game (or points scored per game) as a meaningful metric of defensive (or offensive) prowess without considering pace. If Parretta slows down the pace of the game and thus allows fewer possessions for both him and his opponent, it doesn't mean that he's a defensive mastermind just because his teams rank in the top 20 in points allowed per game. Similarly, Westhead's Oregon team leads WCBB in scoring, but that's primarily due to the fast pace he dictates. To determine how extraordinary each coach is, we must consider pace, which reveals that neither squad is particularly noteworthy. Parretta has the fourth slowest pace in WCBB at 64.2 possessions per game, while Oregon has the fastest pace at 91.8 possessions per game. Oregon is still quite good offensively, as they ranked 33rd in the nation at 1.01 points per possession, but they are far behind national leader UConn, at a hefty 1.18 offensive PPP. (The Irish are second at 1.14.) Parretta doesn't fare as well, as his squad is 70th in the nation in defensive PPP. Again UConn is tops in DPPP at .66, with the next team .76 (a tie between Gonzaga James Madison, and Hampton). In case you are curious, Notre Dame is 16th in the nation at .81 DPPP.
The last aspect of good defense is rebounding. If the other team misses twice, but gets the offensive boards each time, and then scores on the third attempt, that is considered a single possession, and so the defensive team yielded 2 points that possession even though they scored only .67 points per FG attempt and only shot 33%. That's just another way that FG% defense and points per FG attempt do a poor job of measure the strength of a defense. This makes sense of course, because if the offensive team gets the offensive rebound, you really haven't stopped the threat yet, but rather only delayed it slightly.