Describe the two perspectives on how much impact managers have on an organization's success or failure

Actually its very true the impact is very big which affects managers along with other followers working under him in both good and bad or worst ways, firstly a perspective is where manager fails to keep up the promise to the clients on behalf of company, but fails to follow the words before dead line, which will bring down the company, inturn the project there by the managers and workers, But on the flip side if as a perspective if managers does what he commits, then all good things will fall in line, for the company, and then inturn to managers and followers for sure