Obama- Learning as you go

"Flip-flopping" is the new word used a lot recently concerning Democratic presidential candidate Barack Obama. He has been "flip-flopping" on many issues that he was so stern about during his race with Hillary Clinton. He said early on that he would bring the troops home from Iraq in 16 months. He was very firm on this issue. Now he is saying something totally different (of course he says he hasn't changed his stance). Now he is saying he will have to talk to our military leaders in Iraq and move the troops out in a way that best serves their safety. This makes sense but why didn't he think about this in the first place? Even I can answer that question. He didn't know any better. Obama is learning this thing on the fly. I'll give him this, he is a very smooth talker and almost talked his way out of the troop withdrawal flip-flop. Almost.
Do we actually want an inexperienced "learn as you go" President of the US?