At most companies, even small ones, there’s a ton of value to be had in collaboration. Sure, you can probably get big projects done yourself—but should you? A smart professional takes advantage of the talented people around them, and luckily there are tools like Dropbox to help you share ideas and gather feedback. Still, it can be tough to know exactly who to ask for help. So here’s our short list of the team players you should consider hitting up for advice.