This can be managed by getting the software engineer's input into whether something really is a P0 or P1. The Product Managers should also know their users bett

This can be managed by getting the software engineer's input into whether something really is a P0 or P1. The Product Managers should also know their users better so they can chime in and not consider everything to be a fire. Mature projects are also supposed to have an increasing percentage of the time spent on them dedicated towards maintenance / upgrades / fixes / upkeep. A PMO that can't convince upper management of this is a weak PMO.