Hughes 's position as City manager is not under immediate threat , but , after a damaging sequence of one win in the past ten Barclays Premier League matches , a drastic improvement will be needed if he is to persuade al-Mubarak and Sheikh Mansour , the owner , to persevere with him next season rather than attempt to lure a more proven coach , such as José Mourinho or Guus Hiddink , to the City of Manchester Stadium .