Don’t worry, I’ll disagree with you LL.
I think the engineer/driver relationship is extremely complex. The engineer is there to help the driver during the race and act as a conduit for messages from the team in general. They are not there to be best buddies with the driver, however, the engineer can adopt the best buddy approach if that suits the driver. In the case of Felipe Massa/Rob Smedley, Massa appears to respond well to the relationship between them being more of a friendship. Whereas Lewis’ relationship with his engineer may be more like that of an authority figure, telling him the way things are and what he should do.
I think drivers like Schumacher and Alonso are so good at tactics that their engineer is for the most part an information source.
If an engineer and driver don’t get along, the team will move the engineer on rather promptly.