If there are only 4-6 ORs in your facility, then the manager may only be looking for seasoned OR nurses who are able to circulate and scrub. Scrub experience is needed, especially in a smaller facility which may require the nurse to be able to give breaks to both circulator and scrub. More importantly, if any traumas come in, the OR nurse should be able to assist in either role. I believe your best bet would be to take classes for scrubbing, possibly shadow a scrub at your current facility, or apply to a surgery center near you that will teach you this. Another option would be to find the largest hospital within your area and apply to the OR there as larger OR departments typically have scrub techs to save on costs.