Afterward, in Alma 53:6, it says this:
And it came to pass that Moroni had thus gained a victory over one of the greatest of the armies of the Lamanites, and had obtained possession of the city of Mulek, which was one of the strongest holds of the Lamanites in the land of Nephi...I remembered that the city of Mulek was the first city Captain Moroni worked to regain after it had been lost to Amalickiah. And we find out that it was one of the strongest fortified and had one of the largest Lamanite armies in it.
He went for one of the biggest challenges first instead of saving it for last. That really says something about Moroni's character. He was about solving the big problems. He had the determination to face it head-on. He had a lot of help in doing it, but a big and tricky objective was the one he went for first. I wonder what would happen if I made that trait part of my character too? What might I accomplish?
What keeps us from working on the hardest things first? There are probably several reasons. First, we're a little scared. Second, we don’t know how long it will take or how much effort we will have to put in to it, and we probably worry that once we work on that big thing we won’t have time for anything else. Or maybe the task is so nebulous and fuzzy in scope that we are not excited about taking the extra time to look at it and corral it into something more defined.
I really like the way that Captain Moroni approached the challenge of retaking Mulek. He came up with a plan with the help of his staff and took a tag-team approach with each army playing its part. He split the operation into stages—the lure stage, a wild goose chase stage (with a simultaneous city-taking stage) and a fatigue-and-trap stage.
Even if we have a big job to do, we can still make it manageable by breaking it up into stages. And why not pray too to ask Heavenly Father to help?