High level postings and transfers in Pakistan Army

[Sinnerman108]

http://www.geo.tv/article-127015-High-level-postings-and-transfers-in-Pakistan-Army

ISLAMABAD : Corps Commander Karachi Lieutenant General Aijaz Chaudhry has been reassigned as IG Arms GHQ while Quarter Master General, Lieutenant General Sajjad Ghani has been posted as Corps Commander Karachi while Lieutenant General Najibullah has been posted as Quarter Master General.

Sources add, that a special meeting of the Pakistan Army’s formation commanders will take place tomorrow (Wednesday).

Appointment for Appointment, can some one enlighten us.

What is the government's rationale and what does this move signify ?