Moeen Ali is a T20 specialist and t was not fair as he was not in the team because of the restrictions of 4 foreign players and hence he was looked upon and this year he was lucky that he was picked by Chennai who was looking for a change in fortunes by foreign players and that his pick will become a welcome change for the team and they still need to find someone to replace Ambati Rayudu as well 
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.Moeen is lucky that he got a guaranteed slot within the playing XI for CSK, unlike what happened with him during last season. As of now, these three foreign players seems to have permanent slots - du Plessis, Curran and Moeen. The fourth slot is open, and if Dwayne Bravo is not performing well then it may go to Lungi Ngidi or Imran Tahir (with Mitchell Santner and Jason Behrendorff also in contention). The problem for CSK is not with the overseas players, but with the local ones. What should they do with those who are not performing?