Creative Writing Club- Story modification

I have currently entered a brainstorming phase for a new story I'm planning on starting. It may be a modified version of the story I was mentioning earlier, which I'd planned on finishing, though now that I look at it, the beginning doesn't feel right. It just throws you in. There's no buildup of tension. I think it'd be more effective if it started differently, which is why I'm going to trash the beginning I was working on and starting it afresh and very differently, because if you can't capture the audience at the beginning there's no way they'll finish the book unless there's nothing else to read at all. I know this myself, because there's been books I've started to read and the first pages don't draw me in, so I toss them aside and read something else. So, hopefully this change will help me draw the audience in and keep them interested. I thought the beginning I had was good, but after looking at it I realised that despite all the action in the first page, it comes of dry and shallow, almost transparent. So I've decided to change the beginning. What I'm going to change it into though, is as of yet, still unclear; unfourtuantly I have nothing to bring in this Thursday, but hopfully my revised beginning will be ready by the next meeting.