I need some good advice on how to work productively with an SJ coworker.
In the heirachy, I am 1-level above this person, but as an ENTP (obviously) I pay little attention to structure. I prefer to establish good working relationships, therefore establishing trust, therefore creating a productive team (I am a project manager). I hope it is clear that the Team environment is absolutely a priority in this scenario.
The problem is I think with this person in particular, when technical issues come up I am much more knowledgeable and have no issue sharing my opinion or challenging our design group. He is the product manager and (complete guess here) feels threatened because he doesn't understand the technical conversations. Lately, he has started becoming very terse, trying to control everything, doesn't want to have me at meetings...
Any tips on how to rebuild this and not jeopardize the success of the project? Not having someone cover the technical issues or able to challenge the engineers on problems has already caused one project to go miserably wrong. I would rather not resort to using my "status" and making life hard for him via his manager.
He is an ISTJ