The secret to showing engineers where to look for deteriorating conditions is that the current state (metrics) of your network are then continuously compared against a rolling period (configurable, last 8 hours by default) to see whether performance is deteriorating or improving. This is done not only on the network as whole but also on subsections (groups) of your network.
Status trends are reported visually using arrows to show if health is improving or declining. You can then drill-down into more detailed KPI data for an individual device.