It is pretty obvious sales and marketing teams of any company just need growth and growth just comes from more revenue and more customers.
There are different stages in the funnel, at the top, you have the lead generation and you want to put as many leads as possible. Then you nurture it through your inbound marketing and other teams and then you want to close the deal. To make it even more obvious, you should have lead volume, so the more number of leads you put into the funnel, your funnel can get bigger. You can close more deals or you can increase the velocity which means the pace in which the lead moves through the funnel has to be expedited. So those are two ways in which you can make your funnel work better for you increase the size of the funnel or make it shorter and quicker.