IT Operations still spend countless hours dealing with unexpected performance issues. This speaks to the true need and value of application performance monitoring. Proactive monitoring helps anticipate such performance problems and allows IT to gain these lost hours back:
One IT professional averages 20 unexpected issues per week, putting out fires such as dealing with network slowdowns/outages, poor performing applications, unanticipated change requests, or equipment
failures according to a survey by independent market research firm Kelton Research
You can read more here: How Many IT Professionals Does it Take to Fix an Issue?