That can happen, but the juror would have to really be refusing to deliberate, not just refusing to be swayed.
And yet that doesn't seem to happen in this courtroom.
Are there any other grounds for being let off/kicked off besides refusing to deliberate? For example- what if this is about the juror who asked to be released days ago and was refused. She's given it her best try but realizes she just can't return a DP verdict, even of that's what she thinks is the right thing to do, and no amount of time is going to make it possible for her. Does that count as refusal to deliberate? Can a juror be released for not being able to cope emotionally?
And if that is what's going on, how problematic is it that the juror asked for a specific replacement?