The issue, to me, is not a matter of control. It's a two part issue. The rules of engagement that we are operating under aren't too clear cut and not well overseen. The second is intelligence. We don't have a lot of on the ground human intelligence in the area. That is in due to a LOT of factors dating back to the Reagan era. Electronic Intelligence and a surge in analysts leave us behind in any issue that requires accurate on the ground assessment.
Downsizing of international assets (Spies), a 'satellites can do it better & cheaper' outlook, several devastating hits to US trust (Wikileaks and the revelation of Valerie Plane as a NOC (no official agent)) have all reduced our capacity to recruit men and women in the field that are willing to trust in our ability to protect their lives and their families.
Bluntly put.. we are lacking good rules on how to use the drones and eyes to look at the targets we're shooting at.
I think first off.. the Drones should be entirely under the control of Department of Defense (DoD), with clarified rules of engagement and more defined oversight. Then we need to put the CIA back to what they do. Collect intelligence rather act on it. We need to recruit/deploy more folks in the field. In Yemen, for example, there have been NUMEROUS cases of the terrorists coming in after a strike and paying for recostructing homes and burying family members. We're making them look like good guys.. and building their base for them.