Corey Richards, the Bangladesh fielding coach, has become the third member of the support staff to tender his resignation in the space of eleven days after the BCB's cricket operations committee chairman Akram Khan confirmed that he had received a resignation later from him.

Richards' exit comes after the head coach Shane Jurgensen and trainer David Dwyer had both quit late last month, leaving only the physio Vibhav Singh and computer analyst Nasir Ahmed left in the support staff.

The BCB, however, has already formed a five-member special committee to look for new coaches, as well as a head for the National Cricket Academy which was vacated when Richard McInnes left last month.

Richards was appointed in February last year on a two-year contract till the 2015 World Cup, a few days after Jurgensen was made full-time coach. But over the past few weeks, the BCB has been seeking specialist coaches in all three departments, leaving Richards, who was also the team's batting coach, in an untenable position.

"I have handed over my resignation to Akram and the required people," he told ESPNcricinfo. "It has been accepted immediately and I will be leaving in a few weeks. The fact is that the BCB and I are going in different directions so I feel it was time to part ways.

"There are a few reasons to take the decision and it has come up over the past few months. The final thing for me was when Shane [Jurgensen] resigned. But I have really enjoyed working with the players, Shane Jurgensen and the coaching staff, and the two programs - batting and fielding departments."

Richards said he is looking for a bigger role in coaching, particularly having been so successful in that position for the Sydney Sixers. "I am seeking more head coaching roles and the opportunity for that in Bangladesh doesn't appear available in the immediate future.

"With the experience and success that I have had in my head coach career to date, I am looking at potential opportunities to continue my development and career."

Richards will take back with him the memory of a successful 2013 where he blooded several youngsters.

"The definition of success for a coach is to see the development of players," he said. "Mominul Haque, Anamul Haque and Mushfiqur are such improved cricketers, and they are learning and trying to be better every day."

Mohammad Isam is ESPNcricinfo's Bangladesh correspondent. @isam84