The issue with the Iraqi security forces isn’t training, it’s leadership and logistical support.PM Maliki purged the Sunni Generals the instant we pulled out. He appointed Shiite lackeys to those posts. Many of them had no military training. Many of the rank and file Sunni soldiers said screw it and left. As for logistics, the Iraqi govt corruption prevents the beans, bullets, and band-aids from getting to the units that need them most. Putting this on Petreus is crap.
It was always stated that Bremer made that decision, but I would imagine the order came from Cheney or Rumsfeld.
The assessment of training of the new military and police forces in Iraq was done by the Iraqi Security Forces Independent Assessment Commission which was headed by the recently retired Marine General Jim Jones and made up of retired military and LEOs and that assessment was rolled into the Bush withdrawal timetable. General Jones would become Obama's National Security Advisor, and would leave after the Iraq ramp down and Afghanistan ramp up was complete.
After that, Obama would hire the same 3 men to manage Afghanistan that Bush has managing the surge. General Petraeus, General Allen, and Ambassador Ryan Crocker. Ryan Crocker was the first US official to sign the Iraq SOFA, along with the Iraqi Foreign Minister. After which it was approve by the Iraq Parliment, after which it Bush and Maliki signed it.
What you say about Maliki purging was true, but there were a lot of other gruesome things going on at the same time.