We move the colleague from Russia to Bosnia/Sarajevo for the Director position. Service of the foreigners tells that the spouse can't possess the Visa D and residence permit for the first year of the husband's employment. I can't imagine the husband and children stay in Sarajevo without wife/mom. Is it the real situation with the legislation? may be there some options to have the spouse with the family legally?
From my research it seems that you may be able to bypass these laws through either a Letter of Invitation or Temporary Residence through Family Reunification. I recommend having a look at this Minisitry of Security website page. All the information I have been able to find is listed on this page. I don't see why one of these two laws shouldn't be able to assist you in this situation.
I hope this helps and that you come right.