Resources
Project resources are assigned to solve problems.
Sometimes throwing more resources at problems might help solve them faster. More hands, more eyes, more brains on a task can unlock a bottleneck.
Then again, throwing more at a problem doesn’t always speed things up.
I heard recently an acquaintance is pregnant; it reminded me of a project management quip about adding resources to solve a problem:
It takes nine months to make a baby, typically involving one woman and one man. If you’re in a rush, involving nine men, or nine women, doesn’t mean it will be done in a month.