In an interview in Abu Dhabi, Whatmore said, "I think this (language barrier) was an issue specially the part where the communication came back." (Agencies)
Many former Pakistani players had criticized the decision of the cricket board to appoint a foreigner as a coach, pointing out that the language barrier was always a big impediment between the coach and the players.
The former Australian player, who has also coached the Sri Lankan and Bangladesh teams, said he got a feeling that some players found it difficult communicating back to him.
Whatmore, however, termed his tenure with the Pakistan team as enjoyable and satisfying.
"Obviously, there is a feeling when you are getting ready to leave a bunch of players you have been with for two years but I am happy that the Pakistan cricket board and I am parting ways on a good and cordial note," he said.
"I am happy with the way things have worked out with the board and, in future, if there is an opportunity to come and work in some other capacity with Pakistan cricket, I will do it," he added.
Whatmore said he was looking forward to spending quality time with his family.
"In the past two years, I have spent very little time with my family and I think now it is time to turn my attention to them," he said.
Whatmore said 2013 had been a tough year for Pakistan cricket but the team came back strongly in South Africa where it won the one-day series.
In an interview in Abu Dhabi, Whatmore said, "I think this (language barrier) was an issue specially the part where the communication came back."