‘My Role as a Manager'  

Cap Watkins:

When managers do this, the end result is the same: resentment and distrust from their team, as well as a decrease in the quality of the work because, surprise, when people don’t have a voice in the direction of the product, they believe in it less. And that always, always shows up in the work. A bad manager is single-handedly capable of taking a great team and producing mediocre (or just hands-down terrible) results.