Drone kills TTP No.2 | TTP withdraws talk offer

Re: US drone kills Pakistan Taliban number two

The TTP decides the heirarchy, of course. In a video released last year they stated that Waliur Rehman is Hakimullah Mehsud’s loyal deputy, in an attempt to dispel rumours of a split between the TTP leadership.

This link is from last December.
Hakimullah Mehsud not to be replaced: TTP | Pakistan | DAWN.COM
PESHAWAR: A video released on Friday, showing Tehrik-i-Taliban Pakistan (TTP) chief , Hakimullah Mehsud sitting with his deputy Waliur Rehman, dispells recent reports of a depeening rift between the two powerful militant commanders.

“There is no divide in TTP. I and Maulvi Waliur Rehman are one, and look, we are sitting together. The propaganda of a rift in Taliban ranks is totally untrue,” says Mehsud pointing to Rehman in the 45-minute Pashto language video, a copy of which has been received by Dawn.com.