I just want to mention that I totally understand everyone's concern about surgery...especially on the back area. But, medicine has come a long way in the past 10 years!

Even with regard to surgery for disc problems.
The surgery is much safer now and recovery is much easier/better!
I was terrified too about the surgery (then had a terrible anesthesiologist who basically told me I was going to die during surgery!

) but after having it, my opinion has really changed.
The pain prior to the surgery was so intense (for about a week) that I had to take an unbelievable amount of pain meds just to get out of bed. This is probably TMI, but I couldn't even go to the bathroom 'cause I couldn't sit! At this point, not having surgery wasn't an option, I simply couldn't live with the pain.
I had my surgery around 7am and went home later that same day. Because I have a "desk job", I was able to return to work in two weeks (they originally wanted me to be out 4 weeks).
Surgery for herniated discs is not as "hard" as it used to be. I would never have a fusion of any type, but to just have the laminectomy and discectomy is not the "major" surgery it used to be.
C.Ann...can your DD talk to her supervisors? Maybe she can still work in that field, but in a more "supervisory" position. It just seems like they would still be able to use her experience and qualifications, even if she is no longer able to perform a relatively small part of her duties.
Most times one can live with the pain...only the "flare ups" are problematic. But, IMO when it comes to possible permanent nerve damage, surgery is the better option.
I really hope your DD finds relief and a solution can be found so she can keep her job, or at least stay in her field.