So...who gets the job?

There is a bit of a dilemma where I work..I'm not involved in it, but I am curious about what other nurses think and abotu what supervisors (other than mine) would do.

Here's the story...

One of the full time night shift nurses turned in two weeks notice...nurse's are supposed to give 30-days according to the policy manual. One of the evening shift nurses requested to transfer into the night shift position and after having to go through the entire application and interview process was offered and accepted the position. One of the PRN nurses agreed to fill the evening shift position until the new nurse could work out her notice at her previous job and go through orientation. The day before the night nurse's last shift, her new position fell through, so she "rescinded her resignation." The DON accepted that and moved the evening nurse back to the evening shift and gave the night nurse her position back...the new nurse (the one hired to work evening shift) was pushed into a one day shift, two evening shift, and two night shift position. Seems pretty unfair to me...the evening nurse is now scrambling to find child care becasue she gave up her babysitter who immediately found another child to fill the spot...the new nurse gave up a job that was much more ideal than the bouncing from shift to shift thing plus she is losing her shift differential on the shift she works day shift.

I guess I always thought once you quit, you were done...if something happened and you ended up not needing to resign, you were out of luck...sure if the position was still open, it would be logical to let you have it back, but if not, it seems very unfair to mess up so many other lives.