There may be problems with some of the killings approved by the current administration, but the problems with those cases won't go away if drones are replaced with human assailants.
To the extent our methods are illegal and wrong, on the other hand, at least it's not unclear whose responsible. One gem from that last link is a quote from former CIA director Hayden:
“I have lived the life of someone taking action on the basis of secret O.L.C. memos, and it ain’t a good life. Democracies do not make war on the basis of legal memos locked in a D.O.J. safe.”We definitely need to know with whom we're at war and why. The "record" (if there is such a thing today) of the incumbent will be subject to a referendum in November, and playing games with the moral basis of our decisions to kill will not aid the electorate in deciding who has the right of it. Democracies may need to keep secret things like troop locations and tactical matters, but the basis of our political leaders' warmaking arguments is plainly a matter of public interest rather than of operational security.