If you want my blood pressure to go up, just tell me that I need to push my work (or someone else's). The creative process may be hard at times, but does it have to be so adversarial? Does it have to be a fight?
I don't think so. Yet it often is because of ego run amok or a fear of being irrelevant. Someone doesn't see enough of themselves in the work, so they feel the need to shove things in their preferred direction. Or they don't think they're doing their job if they agree too much with what they see.
The best teachers, mentors and managers I've known have displayed the confidence to use the opposite approach. Instead of applying external force, they dug deeper into the work. They would find (or help me find) the little sparkles that suggested a gem yet to be uncovered. There was still work to be done, but I had a hand reaching to pull me up rather than push me down. It was a tug rather than a war.
Now I try to use that approach when I whenever I'm reviewing work. Getting to a sketch or first draft is hard enough. I want to honor that by making sure people know that with me, they're not going into battle. They're going on an adventure of discovery.
Opinions shared here are my own. They should not be seen as a representation of my employer's views.