Substitution Play.

[hamnegger]

Let's be logical here:
Why can the crew undo the call but the coach cant now undue the substitute?

Rules are designed to not allow one team an unfair advantage over another. What deceit was the coach attempting here? None. We the crew have created a disadvantageous situation and we refuse to knowingly rectify it? Is that our job? I believe in rules but I also believe in spirit of fair play which is what rules are all about.

[hamnegger]

I will take it a step further to show how unfair not undoing it can be: Tie game 6 seconds left Celtics vs Raptors playoffs last year let's say. Ball is OOB ruled Raptor ball. Stephens sends in Marcus Smart to replace defensively challenged Isaiah Thomas. Now you change call and Smart has to run the last play not a top 5 scorer in the league. Do this sound correct or fair ? I think I would have a lot more answering to do in this scenario than the other way around.