As a manager, members of your team expect and even crave, your feedback. Similarly, senior managers (or least those who are any good at their jobs) welcome feedback from junior professionals.
But providing feedback laterally is a challenging workplace problem. Startup founders, entrepreneurs and other professionals often mistakenly assume that candor and cordial relationships with colleagues are diametrically opposed. In reality, the only way you can maintain a healthy relationship with the colleagues you rely on is to learn the art of “managing sideways.”
Dispatches From The Front 