Karachi pitch has been known for its runs but Jayawardene was dropped by Misbah on 41 and again twice later. So that contributed to the misery of Pakistan. Also, I believe in a test match the 5th bowlere is a crucial factor. Pakistan should have probably gone in with 4 genuine bowlers + an all rounder and that could have been Yasir Arafat. Shoaib Malik could have been dropped and Yasir Arafat could have taken his place. And Mohammad Talha could been in the squad. A long hot day of 90 overs, you need 5 genuine bowlers. Shoaib Malik's dollys dont really cause a threat in test cricket.