He has bypassed Miss Dismay on this.... "Cameron sidelines May and assumes leading role in cutting migration" http://www.thetimes.co.uk/tto/news/politics/article4457764.ece http://www.bbc.co.uk/news/uk-politics-32967579
If he thinks May hasn't done enough then it's probably bad. It will be good if it stops people bucking the system, but my guess is it will just make things more difficult for those who do it properly.