Content_paragraphs:  Caution must however be taken to avoid the “add-on” phenomenon, where
  
  gender parity performance goals are tacked onto increasingly long job descriptions of
  
  Mission personnel. Goals should be thoughtfully embedded as part of staff roles and
  
  responsibilities as posts are conceptualized. Unfortunately, where career advancement
  
  is concerned, the United Nations system pursues a system of “post adjustment” as
  
  opposed to promotion, thus offering no prospects to female personnel for upward
  
  
  
  S/2020/1224
   
  
   
  
  20-16178 54/74
  
   
  
  movement within the system as they gain more experience and take on more complex
  
  and challenging roles. This absence of upward mobility means that women hired in
  
  junior positions remain there over long periods of time. A more in-depth study that
  
  disaggregates this type of data should be considered.