'technical enough' << I think managers (of projects, people and products) have a huge responsibility to avoid the 'technical scale' trap that inevitably come up either explicitly or implicitly. It is an easy trap to fall into as the too-technical team member who is rattling off technical details as solutions in meetings is perceived as reducing the risk of the project when they may just be limiting it. Managers (or whoever is running the meeting) need to watch for this as it blocks others from participating.