Implementing an IT Strategy!?

The company i work for just went through a major organizational reconstruction. In which new sections and department are formed. an IT Strategy unit is one of the new departments. The problem is that my company facing is the lack of an effective communications between the different business sections and stakeholders, which is effecting the work of the IT Strategy in a bad way.
My questions is there any one can point me to a reference on how to manage IT strategy tasks under such circumstances? And how to help pointing out the importance of creating effective connection between different business sections?