Senator Obama's questions concerning the status of the war in Iraq.

I was watching the testimony of General David Petraeus in Congress,
and I was really impressed by Senator Obama's questions concerning the
status of the war in Iraq.
He asked, if the ideal condition for us to leave Iraq is:
     No Al Qeada in Iraq.
     No infighting within Iraq by Sunnis and ****ites.
     No Iranian influence in Iraq.
     Everything running smoothly.
     .
     .
     .
will require us to be in Iraq for the next 20 - 30 years.

Would the status quo as it is today be good be for us to leave Iraq?