These metrics closely relate to each other. For example, the number of deals in your funnel matters only if you know what percentage of your deals you win on average. The average size of a deal impacts the amount of deals you should be closing in order to hit your revenue goal. And sales velocity helps you understand how much of your time can and should go towards each quality deal, so you can manage your days effectively.
Review your initial lead response time. According to InsideSales.com, 35-50 percent of sales go to the vendor that responds first. Speed literally wins deals! The time it takes for your company to respond to leads once they hit their inbox may be the first source of a leak, so make sure to review this and make time in your day for prioritizing responding to leads.