The empty minute is not the problem
Jalen Brunson’s Game 2 performance and clutch steal are the kind of Finals details that pull everyone toward the loudest player in the frame. That is natural. It is also where rotation talk can get lazy.
When an NBA playoff rotation changes after an injury, the bench is not just filling a chair. The team has to replace jobs. Who starts the possession? Who keeps the corner occupied so the lane is not crowded? Who takes the hardest defensive matchup? Who rebounds when the original lineup is smaller, slower, or less balanced? Who can still give the offense a usable answer when the clock is low?
That is why “next man up” is a slogan, not a scouting report.
Minutes are the easiest part to count
A rotation chart can tell you where the minutes went. It does not tell you whether the possessions still make sense.
If a missing player was a creator, the first change usually shows up before the shot. The ball may need to touch a different guard earlier. A wing who used to attack bent defenses may now be asked to bend the defense himself. A big who lived on clean catches may have to pass out of traffic or screen twice in the same trip just to produce the same look.
If the missing player was a spacer, the geometry changes. The help defender can stand a step closer to the lane. A drive that used to meet air now meets a body. The pass to the corner might still be available, but the catch comes later, the release is faster, and the possession feels tighter even if the box score just records a miss.
If the missing player handled a matchup, the change can be even quieter. A team may still have five competent players on the floor and still lose the one defender who let everyone else stay in a comfortable job.
Closing lineups are where the bill arrives
Playoff coaches can hide a problem for stretches. They can stagger ball-handlers, borrow a few regular-season minutes from the bench, or lean harder into one lineup shape.
Late possessions are less forgiving. The opponent has seen the adjustment. The easy first option is gone more often. That is when the injury replacement has to be more than available. He has to survive the exact job the opponent is pressing.
That can mean guarding without help. It can mean making the extra pass instead of freezing when the second defender arrives. It can mean staying ready in the corner for long stretches, then taking one clean shot without needing the offense to warm him up.
The Knicks-Spurs Finals spotlight makes the question timely because fans are watching every rotation choice with more heat around it. But the basketball idea is older than this series: injuries move responsibility before they move minutes.
So when a playoff injury hits, do not start with the substitution pattern. Start with the missing work. Once you know which jobs disappeared, the rotation change becomes much easier to read.