Whatmore, the Coach of Kolkata Knight Riders, has been appointed Director, Development of Junior Cricket, while former Tamil Nadu coach Raman will be the in-charge of the senior Bengal side in the 2010-11 season.
"Both will arrive here tomorrow morning and will take charge on Monday," CAB Joint-Secretary Biswarup Dey said.
The CAB, meanwhile, picked opener Rohan Banerjee to lead Bengal in the Moin-ud-Dowlah Gold Cup which will begin in Hyderabad next week.
Banerjee will be assisted by wicketkeeper-batsman Shreevats Goswami in the tournament where the CAB has picked a Under-22 side.
The Bengal selectors also picked the three squads of 13 members each for the SK Acharya Challenger Trophy which begins here on September 16.
Raman will oversee the performance of the Bengal seniors before picking the Ranji Trophy squad.
Last season's captain Laxmi Ratan Shukla will lead the CAB Red, while wicketkeeper batsman Wriddhiman Saha has been named skipper of CAB Green that also features Ashok Dinda.
Medium pacer Ranadeb Bose will lead the CAB Blue.
The selectors also named 12 other colts to form a 26-player pool of Under-22 probables.
Moin-ud-Dowlah Gold Cup squad:
Rohan Banerjee (captain), Shreevats Goswami (v-c, wk), Sayan Sekhar Mondal, Writam Porel, Sami Ahmed, Soumya Pakray, Mohammad Azaz Ansari, Arun Lal Yadav, Avishek Yadav, Amit Mehra, Aloke Sharma, Sudip Chatterjee, Kamalesh Mitra, Avilin Ghosh.
Anup Kumar Barik, Jayojit Basu, Arijit Ray, Subhajit Banerjee, Ipu saha, Avishek Das, Debopriyo Ghosh, Bazlur Rahaman, Raja Adhikary, Sabyasachi Mukherjee, Sudipta Mukherjee, Sufiyan Khan.
S K Acharya Challenger Trophy squads:
CAB Red: Laxmi Ratan Shukla (captain), Sufiyan Khan (wicketkeeper), Anustup Majumder, Avishek Chowdhury, Dibyendu Chakraborty, Soumya Ghosh, Soham Ghosh, Debapriya Sur, Rajkumar Pal, Avijit Mukherjee, Mayukh Biswas, Sourav Sarkar, Pankaj Singh.
CAB Green: Wriddhiman Saha (captain, wicketkeeper), Arindam Das, Shib Sagar Singh, Naved Ahmed, Arindam Ghosh, Debopam Biswas, Uddipan Mukherjee, Iresh Saxena, Sambit Roy, Sandip Das, Ashok Dinda, Nilkantha Das, Eklak Ahmed.
CAB Blue: Ranadeb Bose (captain), Gitimoy Basu (wicketkeeper), Manoj Tiwary, Sourashish Lahiri, Partha Sarathi Bhattacharjee, Subhomoy Das, Avishek Jhunjhunwala, Suvojit Banerjee, Aritra Chatterjee, Amit Banerjee, Manojit Ghosh, Ashrafuddin, Prasenjit Das, Arnab Nandy.