This study examined barriers to the implementation of continuity-of-care practices in child care centers. We collected qualitative and quantitative data for 52 children at four centers that advertise their programs as continuity programs. Of the 52 children, only 7 of the children had been cared for in a single child-caregiver dyad between the time of their entry into child care and either their third birthday or the time of data collection. During their infant-toddler period, the remaining 45 children had experienced 71 cumulative transitions to new child-caregiver dyads. We found that the barrier frequently suggested in the literature and by practitioners, caregiver turnover, was not a significant cause for the non-continuity transitions. The primary barrier that we found was infant caregiver unwillingness or inability to care for children who had developed toddler abilities. A secondary barrier was directors' reluctance to replace unwilling or unable caregivers with willing and able ones.