"The truth is that most of what comes in is perfectly competent. Stories with an interesting protagonist with a clear motivation, on a journey with a definite beginning, middle and end. The problem isn't that it's full of problems. The problem is that it's competent, okay, decent, moderately well-executed, perfectly servicable... You get the idea.
To stand out from this sea of submissions, you need to sparkle. You need to be un-put-downable. As jaded as editors are, you need the manuscript that makes you want to grab the phone immediately to call your spouse, boy/girlfriend, best friend because you can't wait to talk about it, the manuscript that has you leaping out of your chair because you've got to do something to disperse the energy that's rushing off the pages and into your heart. You need to be brilliant."