[ghaff]

When I was a product manager for large computer systems back in the dark ages, I can pretty much guarantee you that none of the engineers wanted to spend probably the majority of their days on the phone with sales reps, in customer meetings, providing updates to management and other groups involved with product launches, writing technical sales docs, and reviewing marketing materials, etc. Many engineers liked sitting in on a customer meeting now and then as a change of pace but they (properly) wanted to spend the bulk of their time focused on actual engineering.