Concatenating your large collection of controllers, services and directives. Running internationalization jobs, running unit tests, running JSLint, running LESS compilation. Creating a versioned file so you have a fallback. And more!
Sometimes, we just create our own problem. I fell into that trap before, and my toolbox is more minimal now.
And btw, gulp is a better replacement for Gunt. But still, consider adding too many plugins into it before it's too late.