source: DESC-SO DESC-CURRENT PACE MIGRATION BE DESC-TOO DESC-SLOW TO ATTAIN DESC-CRITICAL MASS MIGRATION BY DESC-20 DESC-THIRD QUESTION BE ON NECESSITY DESC-CLEAR AND DESC-BINDING END DATE .
  
target: so the current pace of migration is too slow to attain critical mass migration by 20the third question was on the necessity of a clear and binding end date .
  