A Story of Revision

I have this little story that only a handful of people have read. All in all, everyone agrees there's something good going on here, but I couldn't seem to put my finger on what wasn't working. The character was solid, a little narrative heavy, but only one guy is seen in the story, so I let that slide. I just didn't have a sense of where to take this ball of 90% and turn it into 100%. So, then I submitted it to my critique group. Like a white flag going up in a war zone, they spotted the issue and immediately everyone in the group recognized the problem. I had the story's beginning, middle, end, but I had jumbled it up and a portion I felt was middle material, they unanimously agreed belonged as the hook at the end.